[ZODB-Dev] 'PersistentReference' object has no attribute '_p_jar'

[Dominique Lederer]

Hi

I am using ZODB 3.8.1 with Relstorage 1.1.3 on Postgres 8.1

Frequently i am getting messages like:

Unexpected error
Traceback (most recent call last):
  File
"/home/zope/zope_script/eggs/ZODB3-3.8.1-py2.4-linux-x86_64.egg/ZODB/ConflictResolution.py",
line 207, in tryToResolveConflict
    resolved = resolve(old, committed, newstate)
  File
"/home/zope/zope_script/eggs/zope.app.keyreference-3.4.1-py2.4.egg/zope/app/keyreference/persistent.py",
line 55, in __cmp__
    return cmp(
AttributeError: 'PersistentReference' object has no attribute '_p_jar'

do you have any idea, what this means and what i can do against it?
thank you

cheers
Dominique