Other uses in that function are None-safe:
   - first use checks that query_table exavuates to True before using
   - (this fix applied to the second use)
   - third use is to provide related keys with a query_tabe parameter. So when using a related key it is either meaningless (if related key ignores that parameter, it means that it hadcodes its "source" table) or fixable (by making related key handle a None query_table nicely, if not already the case).


git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@24943 20353a03-c40f-0410-a6d1-a30d3c3de9de