[Zope] AssertionError after update to Zope 2.8.1

[Ricardo Newbery]

Oh so close...

Migrated from Zope 2.7.2 to 2.8.1
Updated all the Catalog instances according to the instructions.
Fixed a few outdated products.

Then just for kicks, I tried to update the Python scripts by visiting 
the /manage_addProduct/PythonScripts/recompile url.  After about a 
minute, it threw up an error page.  This is what shows up in the 
log...


2005-08-21T01:56:45 ERROR txn.170046464 Error in abort() on manager 
<Connection at 0956724c>
Traceback (most recent call last):
   File "/Zope-2.8/lib/python/transaction/_transaction.py", line 456, 
in _cleanup
   File "/Zope-2.8/lib/python/ZODB/Connection.py", line 348, in abort
   File "/Zope-2.8/lib/python/ZODB/Connection.py", line 360, in _abort
AssertionError
------
2005-08-21T01:56:45 ERROR Zope.SiteErrorLog 
http://someurl.com/manage_addProduct/PythonScripts/recompile
Traceback (most recent call last):
   File "/Zope-2.8/lib/python/ZPublisher/Publish.py", line 119, in publish
   File "/Zope-2.8/lib/python/Zope2/App/startup.py", line 215, in commit
   File "/Zope-2.8/lib/python/transaction/_manager.py", line 84, in commit
   File "/Zope-2.8/lib/python/transaction/_transaction.py", line 381, in commit
   File "/Zope-2.8/lib/python/transaction/_transaction.py", line 379, in commit
   File "/Zope-2.8/lib/python/transaction/_transaction.py", line 424, 
in _commitResources
   File "/Zope-2.8/lib/python/ZODB/Connection.py", line 462, in commit
   File "/Zope-2.8/lib/python/ZODB/Connection.py", line 483, in _commit
AssertionError


Nothing appears to be broken yet but I'm wondering whether I should 
roll back to my backup.  Anyone have any ideas about this error?  I'm 
tempted to just pretend that I didn't see it.