Pierre-Yves David <pierre-yves.david@logilab.fr> [Thu, 27 Jun 2013 14:12:00 +0200] rev 9113
[repository] add an ``internal_cnx`` method to replace ``internal_session``
Accessing the repo through a Session is deprecated. We need an easy replacement
for ``internal_session``.
This API change was a good occasion to stop disabling integrity hook by default.
This is huge source of bug in user-code.
related to #2503918