Pierre-Yves David <pierre-yves.david@ens-lyon.org> [Tue, 02 May 2017 16:13:04 +0200] rev 2304
obscache: still update and use the cache during transaction
Other code might access the obsolete set in the middle of a transaction. It is
better to use the case in that case since the update will eventually be written
when the transaction is committed.