As both 'Sale Trade Condition' and 'Purchase Trade Condition' might applied on Internal Orders,
The both will be accepted and searchPredicateList will find the best match in both modules.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@40864 20353a03-c40f-0410-a6d1-a30d3c3de9de