Pierre-Yves David <pierre-yves.david@logilab.fr> [Fri, 22 Mar 2013 18:27:34 +0100] rev 8766
[transaction] initialize hook control attribute in Transaction
There is no reason to not initialize them in __init__ time. this simplify the
transaction code.
Pierre-Yves David <pierre-yves.david@logilab.fr> [Mon, 25 Mar 2013 14:20:10 +0100] rev 8764
[transaction] initialize transaction data and state related attribute.
There is not reason to not explicitly declare and initialize attribute in
Transaction.__init__. This change requires the introduction of a
Transaction.clear() method to get ride of some wicked ``AttributeError`` based
logic.