Thanks to everyone that responded. One off-list message I received
made me think about the problem a little more, and after some
debugging, I realized I had a PEBKAC problem on my hands. My app does
some fetch requests to check on existing data in the database,
compares it to what's in a non-CD model, and deletes objects if
certain bits of data are missing. In this case, there are several data
structures sharing a common entity. I just didn't count on -
executeFetchRequest: searching both the persistent store and the
objects that were inserted but not saved. D'oh! Making the predicate
more discriminatory worked around this, and now all is well.
Nick Zitzmann
<http://www.chronosnet.com/>
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