[HOTFIX] remove None values from member list and group member list
Sometimes membergoups contain non existing members, making a list with None values passed to archive.
... 'webframeworks-app-catalogue-tiop-grafana', None, None, None, None, None, None, None, None, None, None, None, None, None,
None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None,
None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None,
None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None,
None, None, None, None, ....
Edited by Emmanuel Ormancey