iterate over repos groups for bool() calls to actually work on it.

fixes some issues with correctly displaying if there are no groups you have permission to.

rhodecode/model/scm.py

@@ -291,9 +291,7 b' class ScmModel(BaseModel):'
         if all_groups is None:
             all_groups = RepoGroup.query()\
                 .filter(RepoGroup.group_parent_id == None).all()
-        group_iter = GroupList(all_groups)
-
-        return group_iter
+        return [x for x in GroupList(all_groups)]
 
     def mark_for_invalidation(self, repo_name):
         """