clear method must be called on the persistent mapping. This is the test error.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@15319 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/tests/testAccounting.py

@@ -1686,7 +1686,7 @@ class TestAccounting(ERP5TypeTestCase):
     """
     # clear all existing ids in portal ids
     if hasattr(self.portal.portal_ids, 'dict_ids'):
-      self.portal.portal_ids.clear()
+      self.portal.portal_ids.dict_ids.clear()
     accounting_transaction = self.createAccountingTransaction()
     self.portal.portal_workflow.doActionFor(
           accounting_transaction, 'stop_action')