Today I had something weird happen in my copy of Resharper 5. I have a class that looks like this:

public class Foo
{
    public string Username { get; private set; }

    public Foo (string userName) { Username = userName; }

    public void Bar()
    {
        DoWork(Username);
    }

    public DoWork(string userName) { }
}

When I start to type DoWork(us I get the following from intellisense:

Notice that it's pulling up the constructor argument, and it ends with a colon: userName:

What's going on here?