What's -mutableSetValueForKey: returning, actually? Is that something special?
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Published on 2010-06-11T13:30:12Z
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2010/06/11
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From the docs:
You usually access to-many relationships using mutableSetValueForKey:, which returns a proxy object that both mutates the relationship and sends appropriate key-value observing notifications for you.
So this returns an "intelligent" NSMutableSet which automatically lets the context delete objects when they get deleted from the set, and reverse? Is that a proxy object?
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