When user.getGroups() returns a tuple, we can't append().

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@4548 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5Catalog/CatalogTool.py

@@ -247,7 +247,7 @@ class CatalogTool (UniqueObject, ZCatalog, CMFCoreCatalogTool, ActiveObject):
         # deal with groups
         getGroups = getattr(user, 'getGroups', None)
         if getGroups is not None:
-            groups = user.getGroups()
+            groups = list(user.getGroups())
             groups.append('role:Anonymous')
             if 'Authenticated' in result:
                 groups.append('role:Authenticated')