getQuantityPrecisionFromResource ignores empty strings, so that you can safely
Jérome Perrin authored
call doc.getQuantityPrecisionFromResource(doc.getResource()) even if resource
is not set on doc.



git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@12351 20353a03-c40f-0410-a6d1-a30d3c3de9de
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