Replace None per "" (empty string).

The portal catalog seems not working with None in this case, with "" works fine.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@28987 20353a03-c40f-0410-a6d1-a30d3c3de9de

bt5/erp5_project/SkinTemplateItem/portal_skins/erp5_project/Project_getSourceProjectRelatedTaskReportList.xml

@@ -78,7 +78,7 @@ if kw.has_key(\'simulation_state\') and len(kw[\'simulation_state\']) > 0 :\n
 else:\n
   task_simulation_state = context.getPortalDraftOrderStateList() + \\\n
                           context.getPortalPlannedOrderStateList()\n
-  task_report_simulation_state = None\n
+  task_report_simulation_state = ""\n
 \n
 task_list = [x.getObject() for x in \\\n
   context.portal_catalog(selection=selection, selection_report=selection_report, \n

bt5/erp5_project/bt/revision

-668
\ No newline at end of file
+669
\ No newline at end of file