[ZODB-Dev] [Bug?] UndoTransaction seems not to invalidate

[Dieter Maurer]

Looks as if we hit a bug this morning:

  We have a Zope 2.6.1/Zeo (ZEO1) setup.

  On one ZEO client, we undid a transaction that had deleted an object.

  On a second ZEO client, the original state (with the object)
  was not restored. Trying to modify the container (for this object)
  resulted in a "DatabaseConflictError".

  The problem only disappeared when this ZEO client was restarted.


Looks as if "UndoTransaction" would not send invalidation messages
to the ZEO clients, at least not reliably.


Dieter