tested property can be multiple.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@32174 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/mixin/rule.py

@@ -202,7 +202,7 @@ class RuleMixin:
     """
     tester_list = self.objectValues(
       portal_type=self.getPortalDivergenceTesterTypeList())
-    return [x for x in tester_list if x.getTestedProperty() == 'quantity']
+    return [x for x in tester_list if 'quantity' in x.getTestedPropertyList()]
 
   def _newProfitAndLossMovement(self, prevision_movement):
     """