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• Setting up WiFi extenders... is it possible to daisy-chain them?

  - by Bigbio2002

  At a location with limited cabling, I've had to set up WiFi signal extenders to cover the whole area. Here is a crude diagram... Internet - WiFi/Gateway - Extender 1 - Extender 2 | | PC (ethernet) WiFi device I was able to successfully daisy-chain three together, and I can access the internet from WiFi devices connected to the farthest extender. Is this a supported configuration? If not, what kind of issues can arise from it? The reason why I ask is that the PC keeps reporting IP address conflicts, and I'm wondering if that's caused because of the way this is configured. Additionally, I noticed that the extenders named their own SSID similar to the one they are connected to, but with a suffix. Would there be any issue in naming them all with the same SSID, to enable seamless roaming as you would with multiple standalone APs?

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• Quick and Good: ( Requirement -> Validation -> Design ) for self use?

  - by Yugal Jindle

  How to casually do the required Software Engineering and designing? I am an inexperienced developer and face the following problem: My company is a start up and has no fix Software engineering systems. I am assigned tasks with not very clear and conflicting requirements. I don't have to follow any designs or verify requirements officially. Problem: I code all day and finally get stuck where requirement conflicts and I have to start over again. I can-not spend a lot of time doing proper SRS or SDD. How should I: List out Requirements for myself. (Not an official document) How to verify and validate the requirements? How to visualize them? How to design them with minimum effort? (As its going to be with me only) I don't want to waste my time coding something that's gonna collapse according to requirement conflict or something! I don't want to compromise with quality but don't want to re-write everything on some change that I didn't expected. I imagine making a diagram for my thought process that will show me conflict in the diagram itself, then finally correcting the diagram - I decide my design and structure my code in terms of interfaces or something. And then finally start implementing my design. I am able to sense the lack of systematic approach, but don't know how to proceed! Update: Please suggest me some tools that can ask me the questions and help me aggregate important details. How can I have diagram that I talked about for requirement verification?

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• Forcing rsync to convert file names to lower case

  - by SvrGuy

  We are using rsync to transfer some (millions) files from a Windows (NTFS/CYGWIN) server to a Linux (RHEL) server. We would like to force all file and directory names on the linux box to be lower case. Is there a way to make rsync automagically convert all file and directory names to lower case? For example, lets say the source file system had a file named: /foo/BAR.gziP Rsync would create (on the destination system) /foo/bar.gzip Obviously, with NTFS being a case insensitive file system there can not be any conflicts... Failing the availability of an rsync option, is there an enhanced build or some other way to achieve this effect? Perhaps a mount option on CYGWIN? Perhaps a similar mount option on Linux? Its RHEL, in case that matters.

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• Outlook and exchange 2010 stalls email

  - by lbanz

  User found an old pst file which is around 15GB and imported to his exchange mailbox. It imported fine. Outlook client starts syncing the emails to exchange. It stalls and then the user will need to reopen the client for it to sync again. The client doesn't crash and still continues to receive new emails but it just doesn't sync the old emails. Sits on Updating folders but doesn't do anything. Shows no sync or conflicts in the client. No errors on progress and Outlook network connection seems fine.

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• deb package building

  - by newcode

  While trying to build a package, I gave the following command in terminal: cd Downloads/src/ cd unity-5.10.0/ dpkg-buildpackage -rfakeroot -uc -b Then it gives the output: dpkg-buildpackage: export CFLAGS from dpkg-buildflags (origin: vendor): -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Wformat-security dpkg-buildpackage: export CPPFLAGS from dpkg-buildflags (origin: vendor): -D_FORTIFY_SOURCE=2 dpkg-buildpackage: export CXXFLAGS from dpkg-buildflags (origin: vendor): -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Wformat-security dpkg-buildpackage: export FFLAGS from dpkg-buildflags (origin: vendor): -g -O2 dpkg-buildpackage: export LDFLAGS from dpkg-buildflags (origin: vendor): -Wl,-Bsymbolic-functions -Wl,-z,relro dpkg-buildpackage: source package unity dpkg-buildpackage: source version 5.10.0-0ubuntu6 dpkg-buildpackage: source changed by Didier Roche <[email protected]> dpkg-buildpackage: host architecture i386 dpkg-source --before-build unity-5.10.0 dpkg-checkbuilddeps: Unmet build dependencies: libutouch-grail-dev (>= 1.0.20) libutouch-geis-dev (>= 2.0.10) dpkg-buildpackage: warning: Build dependencies/conflicts unsatisfied; aborting. dpkg-buildpackage: warning: (Use -d flag to override.) Then I tried to install the package using: cd.. sudo dpkg -i *deb And it gives: [sudo] password for harshnarang8: dpkg: error processing *deb (--install): cannot access archive: No such file or directory Errors were encountered while processing: *deb What is exactly causing the problem and how to encounter it?

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• Prompt for user group when logging into OSX domain

  - by mattdwen

  When a user is a member of more than one group, when logging in to a 10.6 machine, it shows a prompt asking for what group to apply settings for. We're using the groups to mount different shares, e.g. Production and Accounts, based on user membership. Often, a user is a member of more than one group, and needs all the drives available. The Open Directory server is running 10.6 also. Is there a way to skip this prompt and apply settings for all groups. I can foresee that there may be conflicts between group settings, but perhaps a priority can be set too? Or is this totally the wrong way to go about this?

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• Preferred way for dealing with customer-defined data in enterprise application

  - by Axarydax

  Let's say that we have a small enterprise web (intranet) application for managing data for car dealers. It has screens for managing customers, inventory, orders, warranties and workshops. This application is installed at 10 customer sites for different car dealers. First version of this application was created without any way to provide for customer-specific data. For example, if dealer A wanted to be able to attach a photo to a customer, dealer B wanted to add e-mail contact to each workshop, and dealer C wanted to attach multiple PDF reports to a warranty, each and every feature like this was added to the application, so all of the customers received everything on new update. However, this will inevitably lead to conflicts as the number of customers grow as their usage patterns are unique, and if, for instance, a specific dealer requested to have an ability to attach (for some reason) a color of inventory item (and be able to search by this color) as a required item, others really wouldn't need this feature, and definitely will not want it to be a required item. Or, one dealer would like to manage e-mail contacts for their employees on a separate screen of the application. I imagine that a solution for this is to use a kind of plugin system, where we would have a core of the application that provides for standard features like customers, inventory, etc, and all of the customer's installed plugins. There would be different kinds of plugins - standalone screens like e-mail contacts for employees, with their own logic, and customer plugin which would extend or decorate inventory items (like photo or color). Inventory (customer,order,...) plugins would require to have installation procedure, hooks for plugging into the item editor, item displayer, item filtering for searching, backup hook and such. Is this the right way to solve this problem?

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• Ditto (clipboard manager): can't set shortcut of Win+<num>. Get “Error Registering Position 1”

  - by Jeff Kang

  Somone made a Youtube video on Ditto, and that person uses Win+Num to paste items from the list. He put a screenshot of his settings on Google Plus: When I try to do the same, which is to put “1” in the text field of Position 1, and check the “Win” box to add the Windows key as the sole modifier for the shortcut, which will be Win + 1, I get an error in that says “Error Registering Position 1” in a window titled CP_Main: Could it be because Win+Num conflicts with the natural Win+Num shortcut (starts the application pinned to the taskbar in that position, or switches to that program) of Windows 7? Thanks.

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• formatting a column based on another columns cell TEXT not value in excel

  - by lisa

  I have dates that are running off a formula in that column based on information it is collecting from other worksheets. I have another column that lists text answers based on a different formula that that column is running. It is a customer list that runs with names going down page and multiple columns of information for each client running across page What i want to do is: If column j says "paid" then turn column m - same row - a color or border or something I will repeat this formula for the various things that j can say, just cant figure out how to make conditional formatting read j to change m. To complicate things, in addition to the formula running to collect the date in m, there is also a conditional format set up for m that changes the color of the cells after a certain date. I want to be able to keep that formula, in addition to the one that you are assisting with...i will use highlighting, or something different to avoid any conflicts.

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• Using the same local folder for Dropbox and Skydrive

  - by roryok

  Ever since I switched to windows phone I've sorely missed having an official dropbox app. Recently I've toyed with the idea of moving all my crucial files to SkyDrive instead. I have more storage on SkyDrive and the WP SkyDrive integration is very handy. I'm thinking about having both cloud sync services point to the same local folder for the first few weeks. That way if I want to go back its an easy task (and I can keep using dropbox's superior public folder) Has anyone else done this? Are there any potential issues (permissions, conflicts etc)

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• State Changes in a Component Based Architecture [closed]

  - by Maxem

  I'm currently working on a game and using the naive component based architecture thingie (Entities are a bag of components, entity.Update() calls Update on each updateable component), while the addition of new features is really simple, it makes a few things really difficult: a) multithreading / currency b) networking c) unit testing. Multithreading / Concurrency is difficult because I basically have to do poor mans concurrency (running the entity updates in separate threads while locking only stuff that crashes (like lists) and ignoring the staleness of read state (some states are already updated, others aren't)) Networking: There are no explicit state changes that I could efficiently push over the net. Unit testing: All updates may or may not conflict, so automated testing is at least awkward. I was thinking about these issues a bit and would like your input on these changes / idea: Switch from the naive cba to a cba with sub systems that work on lists of components Make all state changes explicit Combine 1 and 2 :p Example world update: statePostProcessing.Wait() // ensure that post processing has finished Apply(postProcessedState) state = new StateBag() Concurrently( () => LifeCycleSubSystem.Update(state), // populates the state bag () => MovementSubSystem.Update(state), // populates the state bag .... }) statePostProcessing = Future(() => PostProcess(state)) statePostProcessing.Start() // Tick is finished, the post processing happens in the background So basically the changes are (consistently) based on the data for the last tick; the post processing can a) generate network packages and b) fix conflicts / remove useless changes (example: entity has been destroyed - ignore movement etc.). EDIT: To clarify the granularity of the state changes: If I save these post processed state bags and apply them to an empty world, I see exactly what has happened in the game these state bags originated from - "Free" replay capability. EDIT2: I guess I should have used the term Event instead of State Change and point out that I kind of want to use the Event Sourcing pattern

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• Invalid user names when creating a LDAP account

  - by h1d

  I'm trying to set up a system where a visitor can enter any user name in a form to create a new user and in the end it gets built on LDAP directory and I'm planning that to be mapped as a UNIX account as well (on Ubuntu Linux) by making the system look up for system accounts on the LDAP. Doing so is fine, but I feel that many user names should be avoided, one of the obvious being 'root' and all the other user names taken for daemons etc. How do you tackle at this problem? Do you make up a list of disallowed user names by checking /etc/passwd? I was thinking that if, internally, the user names could be prepended as 'ldap_' or something, it will avoid any naming conflicts but that seems hard when the LDAP entry name is 'joe' but the system account will look like 'ldap_joe'. Not even sure how that can be achieved.

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• Working with volonteers

  - by JavaCecilia

  I've been engaged as a scout leader in the Scout movement since 1993, working on a local and national level, leading both kids and other scout leaders.Last year, the Swedish Scout Association invited 40000 scouts aged 14-17 years old from 150 countries around the world to go camping for 10 days. I was on the planning team with a couple of hundreds of my closest scout friends and during a couple of years we spent our spare time planning logistics, food, program, etc to give these youths an experience of a life time. It was a big and complex project; different languages, religion (Ramadan was celebrated during the camp) and the Swedish weather were some of the factors we had to take into account. The camp was a huge success, the daily wow factor was measured and people truly had fun and got to know each other. I learnt a lot and got friends around the globe - looking back at the pictures it feels unreal that we managed it.The Java platform as OpenJDK and its' future is a similar project in my mind. With 9 million developers and being installed on 3 bn devices, the platform touches a lot of users and businesses. There's a strong community taking Java into the future, making sure it stays relevant. Finding ways to collaborate in a scalable way is the key to success here. We have the bylaws directing how decisions are made, roles are appointed and how to "level" within the community. Using these, we can then make contributions according to our competence and interest and innovate taking our platform into the future.If you find a way to organize volunteers towards a common goal, solving conflicts, making decisions, dividing the work into manageable chunks and having fun while doing it - there's no end to what you can achieve.

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• Keep ASP.NET site and content separate

  - by Nelson

  I have an ASP.NET site in folder x. Currently lots of other static content gets added to folder x and gets mixed in, making it one big mess. I would like to keep the ASP.NET site and the content separate somehow. I know you can create virtual directories in IIS, but there are LOTS and even some content in the root. The content people are not technical and really need an easy way to add it. I would stick everything in a subfolder (they don't touch anything outside, I don't touch their folder), but that would change their URLs (www.example.com/something to www.example.com/content/something). I almost need a way to "merge" two folders and have them act as one. I'm guessing that is impossible since there could be file conflicts, etc. Any other ways I can achieve this?

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• Is it possible to live-boot VirtualBox from a USB flash drive?

  - by bw.

  To clarify, I'm not asking if you can boot from USB from within VirtualBox. I would like to make a portable version of Windows 7 that I can run from a USB drive on any machine. I'm putting a distro of Linux on my laptop, but I manage a Windows domain at work so I'd like an easier management solution than trying to use Linux tools to interface with a Windows DC(as RDP to a DC is not always an option). The reason I'm inquiring about VirtualBox... I plan on carrying this portable installation with me and using it on multiple machines, so I would like to avoid driver conflicts (which I imagine would happen if I only installed Windows on a flash drive). Basically, I need a way to boot an installation of Windows 7 from USB that still allows me to install/remove/update programs as if it were installed on a standard hard drive, and not freak out over different hardware configurations. Please help, superusers!

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• Networking conflict - What is the most common default computer name for Windows?

  - by John

  I recently had to change the name of my computer to log onto a public wi-fi spot, because a computer with my name was already logged on. (I asked a guy there what to do after it said there was already a computer named "(omitted)" logged on.) I've never been at a wifi spot you had to log into before. I didn't even notice what the computer's name was before. My question is what are the most common default computer names. I'm curious. How often does this sort of problem happen? (For some reason my previous post was closed as off topic - so now I included the reason I'm asking. If it's still considered off topic (networking conflicts) I'll take it elsewhere, but the other forums I know of (ehow.com, answers.yahoo.com) are full of people that couldn't begin to answer a question like this.) Thanks.

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• Networking conflict - What is the most common default computer name for Windows?

  - by John

  I recently had to change the name of my computer to log onto a public wi-fi spot, because a computer with my name was already logged on. (I asked a guy there what to do after it said there was already a computer named "(omitted)" logged on.) I've never been at a wifi spot you had to log into before. I didn't even notice what the computer's name was before. My question is what are the most common default computer names. I'm curious. How often does this sort of problem happen? (For some reason my previous post was closed as off topic - so now I included the reason I'm asking. If it's still considered off topic (networking conflicts) I'll take it elsewhere, but the other forums I know of (ehow.com, answers.yahoo.com) are full of people that couldn't begin to answer a question like this.) Thanks.

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• Couchdb failing test suite on Linux

  - by user52674

  Hi I've been trying to install CouchDB on my webfusion virtual server. I followed the latest instructions from the webfusion forum (see: http://forum.webfaction.com/viewtopic.php?id=2355 ) and it runs (just) Futon is very sluggish and I get 502 errors. Anyway when I run the test suite it fails on multiple tests. Webfaction support have been great but don't have erlang experience to interpret the error logs. Can anyone help me know what might be wrong? Test suite result: basics, all_docs, attachments, attachments_multipart, attachment_names, compact, config, conflicts, delayed_commits, design_docs, design_options all the errors are: Exception raised: {"error":"unknown","reason":"\u000d\u000a502 Bad Gateway\u000d\u000a\u000d\u000a<\h1502 Bad Gateway\u000d\u000a nginx\u000d\u000a\u000d\u000a\u000d\u000a"} except for 'compact; which also has: Assertion failed: xhr.responseText == "This is a base64 encoded text" Assertion failed: xhr.getResponseHeader("Content-Type") == "text/plain" I'm stumped. Anybody know what these indicate? AL

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• Remap control key in gnome-terminal?

  - by Colin

  I just installed Ubuntu to get more familiar with it since I'll be using it in a new job shortly. I use Macs at home and in my current job, so I'd like to make it as Mac-like as possible. I've remapped the command and control characters using the following .xmodmap: remove control = Control_L Control_R remove mod4 = Super_L Super_R add control = Super_L Super_R add mod4 = Control_L Control_R Which works great for everything except the terminal, since Ctrl-C is now mapped to CMD-C, and still conflicts with what I'd like to use to copy. Is there any way I can remap the Control key just for the terminal? I'm willing to consider gnome-terminal alternatives if required.

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• Keyboard no longer works when entering BIOS

  - by Tommy

  I am trying to boot from USB so I can install a couple different Linux distros. I can enter the BIOS, but as soon as I enter the BIOS the keyboard lights switch off (Num Lock and Caps Lock) and I cannot use the keyboard to do anything in the BIOS or even exit or restart the PC using Ctrl+Alt+Del or do anything at all with the keyboard. But as soon as I boot back into Windows, everything is fine... I've never had this problem before and some Googling hasn't helped. I've tried using a few other keyboards and simply unplugging/replugging the keyboards, but it didn't work. Is there anything I can do in Windows to maybe find out why the keyboard isn't working in the BIOS screen? In the Device Manager, all the drivers are up to date and there are no conflicts.

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• How would you manage development between many Staging branches?

  - by Trip

  We have a Staging Branch. then we came out with a Beta branch for users to move whenever they wanted to from old Production branch to the new features. Our plan seemed simple, we test on Staging, when items get QA'd, they get cherry-picked and deploy to Beta. Here's the problem! A bug will discreetly make its way on to Beta, and since Beta is a production environment, it needs fixes fast and accurate. But not all the QA's got done. Enter Git hell.. So I find a problem on Beta. No sweat, its already been fixed on Staging, but when I go to cherry-pick the item over, Beta barely has any of the other pre-requisites of code to implement this small change. Now Beta has a little here and a little there, and I can't imagine it as a code base being as stable as Staging. What's more, is I'm dealing with some insane Git conflicts, and having to monkey patch a bunch of things to make up for what Beta hasn't caught up with Staging. Can someone polite or non-polite terms, tell me what we're doing wrong here as far as assembling this project? Any awesome recommendations or workarounds or alternatives to the system we came up with?

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• Massive Affiliate Shopping Platform. Is WordPress really suitable? [closed]

  - by SPI

  I am working on an online shopping platform that acquires it's data from various affiliate programs through XML files. I am talking hundreds and thousands of items per program here that change often if they go out of stock. My clients choice of CMS was WordPress. I am guessing he assumed the user friendly interface would make life easy for him. However, the fact that he hired me to parse the XML files, store data in the back-end and basically make everything work tells me he had very little clue about what he was getting himself into. My impression is that WordPress has a very specific way of handling data as it divides everything into categories/sub-categories in the back-end which is very counter intuitive to a business model where data exists in numbers of over hundreds and thousands of items and is further cross referenced by programs so that any change in the programs XML file can easily be reflected products page. Conclusion I have a very specific database model implemented for handling my clients needs. However, this model conflicts with how wordpress chooses to save data in the back-end natively. I am absolutely convinced WordPress is geared towards anything that might resemble a blog and definitely not THIS. I am thinking about asking my client to shift to a custom CMS. Before making my pitch though, I wanted to run this by the stack community. Thanks for the input in advance.

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• What is the best way to solve an Objective-C namespace collision?

  - by Mecki

  Objective-C has no namespaces; it's much like C, everything is within one global namespace. Common practice is to prefix classes with initials, e.g. if you are working at IBM, you could prefix them with "IBM"; if you work for Microsoft, you could use "MS"; and so on. Sometimes the initials refer to the project, e.g. Adium prefixes classes with "AI" (as there is no company behind it of that you could take the initials). Apple prefixes classes with NS and says this prefix is reserved for Apple only. So far so well. But appending 2 to 4 letters to a class name in front is a very, very limited namespace. E.g. MS or AI could have an entirely different meanings (AI could be Artificial Intelligence for example) and some other developer might decide to use them and create an equally named class. Bang, namespace collision. Okay, if this is a collision between one of your own classes and one of an external framework you are using, you can easily change the naming of your class, no big deal. But what if you use two external frameworks, both frameworks that you don't have the source to and that you can't change? Your application links with both of them and you get name conflicts. How would you go about solving these? What is the best way to work around them in such a way that you can still use both classes? In C you can work around these by not linking directly to the library, instead you load the library at runtime, using dlopen(), then find the symbol you are looking for using dlsym() and assign it to a global symbol (that you can name any way you like) and then access it through this global symbol. E.g. if you have a conflict because some C library has a function named open(), you could define a variable named myOpen and have it point to the open() function of the library, thus when you want to use the system open(), you just use open() and when you want to use the other one, you access it via the myOpen identifier. Is something similar possible in Objective-C and if not, is there any other clever, tricky solution you can use resolve namespace conflicts? Any ideas? Update: Just to clarify this: answers that suggest how to avoid namespace collisions in advance or how to create a better namespace are certainly welcome; however, I will not accept them as the answer since they don't solve my problem. I have two libraries and their class names collide. I can't change them; I don't have the source of either one. The collision is already there and tips on how it could have been avoided in advance won't help anymore. I can forward them to the developers of these frameworks and hope they choose a better namespace in the future, but for the time being I'm searching a solution to work with the frameworks right now within a single application. Any solutions to make this possible?

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• How to use Winmerge with Git Extensions?

  - by sebastiaan

  I'm using Git Extensions and it pre-installs and sets up KDiff as the diff tool to solve merge conflicts. I'm very fond of Winmerge though and would like to replace KDiff with Winmerge. In the Git Extensions settings, there are settings to change the Mergetool, but I can't seem to figure out what syntax I should use and why. There seem to be 4 variables: $BASE, $LOCAL, $REMOTE, $MERGED. It seems that I should pass these to WinMergeU.exe, but with which command line parameters? I've tried to search for this a few times, but there is no answer that actually seems to work.

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• jQuery/JSONP widget and jquery version conflict

  - by geraud

  I would like to create a widget so that my visitors can display it on their blog/website. I would like to use jquery and jsonp to develop this widget. I know how to avoid conflicts between jQuery and other libraries (like prototype). But what will happen if jquery is already installed on my visitors' websites and if their version is different from my version ? What I mean is: what if, for example, they run a script using an older jquery version and which is not compatible with my jquery library ? Does it stop working ? Is their any workaround ?

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