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Vincent Pelletier authored
Volatile attributes are not stable any more at transaction scope with Zope 2.8, so better return the cache after initialisation than entrusting it to a volatile. git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@15844 20353a03-c40f-0410-a6d1-a30d3c3de9de
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