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Vincent Pelletier authored
When server address is changed, None value is set in the volatile, in which case old code returned None. Now, check for None value and reinstanciate if needed. git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@18067 20353a03-c40f-0410-a6d1-a30d3c3de9de
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