Ticket 47750 - Need to refresh cache entry after called betxn postop plugins
Bug Description: If deleting an entry triggers multiple betxn plugins, the
entry might not be removed the cache - which prevents that
same entry(same dn) from being re-added(error 68). For
example, the RI and memberOf plugins are enabled. Then we
add a user to a group. This adds the memberOf attribute
to the entry. We then delete that user, which triggers the
RI plugin, which then triggers the memberOf plugin. So the
entry that is deleted gets modified in bvetxn postop, and
has its its cache entry replaced. This then confuses the
cache logic at the end of the delete operation, and the entry
is not removed from the cache.
Fix Description: Refresh the cache entry after calling the betxn postop plugins.
If the entry has changed, return the old old entry and proceed
with the new one.
https://fedorahosted.org/389/ticket/47750
Reviewed by: nhosoi & rmeggins (Thanks!!)