> I'd like to observe a notification when a user edits (renames) an item in the
> outline view that tells me the old and new values. I'm getting notifications,
> but the old and new values are always null. For what it's worth, I'm
> currently observing the "content.name" key path of the NSTreeController
> instance - not sure if that makes a difference.
Sounds suspiciously similar to the NSArrayController bug where it
doesn't honor the NSKeyValueObservingOption{Old|New} KVO options.
There are quite a few references to this around the web, e.g.:
http://www.cocoabuilder.com/archive/cocoa/215277-nsarraycontroller-selectedindexes.html
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