I had a situation where removeObserver:forKeyPath: was called twice for
the same receiver (an NSUserDefaultsController), the same observer, and
the same key path. It threw an NSRangeException. But the KVO docs
don't say anything about removeObserver:forKeyPath: throwing an
exception. Should this be considered a documentation bug, or is it a
bug that -[NSUserDefaultsController removeObserver:forKeyPath:] threw an
exception, or should I have just expected this due to some general
principle?
--
James W. Walker, Innoventive Software LLC
<http://www.frameforge3d.com/>
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