[Zope] zope-2.1.5 and zclass (again)

[Vladimir Petrovic]

I'm getting the same error on Zope 2.1.5. My zclass A which inherits object
manager. Inside it I have zclass B. When I try to create B object inside A
folder Zope gives me an Attribute Error: _getOb inside
B.createInObjectManager ()
It seems then Zope does not see class A's parent object manager. But, I have
exported A objects containing B object from 2.1.4 to 2.1.5 and that works.

There are no problems on 2.1.4. Classes are first defined on 2.1.4 an then
exported to 2.1.5.

Zope is built from source on RH 6.0, python 1.5.2

Vladimir