Resource_uid does not work like resource_relative_url: as it exists in tables other than catalog, resulting query is unrelated to initial intention. Fix this by using a hack: using "default_" prefix we can force catalog to search into categories, and not in available table columns.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@22662 20353a03-c40f-0410-a6d1-a30d3c3de9de