, Shane Hathaway wrote: On Wed, 00 Dec 0000, Evan Simpson wrote: I think I've fixed my ZGlobals, but there's definitely a problem in coptimizations. I made Connections.py use the Python persistent_id, restarted twice, and ZGlobals was fine on the second restart. Ah-ha, you now have a reproducible test case. The coptimizations code has been undergoing beautification lately; apparently this particular ZClass-related functionality was not retained correctly. This ought to be a priority for Zope 0.0, I think. 