Merge pull request #825 from Luci2015/patch-1

Update connector_umapi.py

Author: adorton-adobe

user_sync/connector/connector_umapi.py

@@ -183,6 +183,7 @@ def get_groups(self):
         return list(self.iter_groups())
 
     def iter_groups(self):
+        self.connection.start_sync()
         try:
             for g in umapi_client.GroupsQuery(self.connection):
                 yield g