OSIS-3717 enable faculty manager to change/delete education group when period is closed
OSIS-3717 enable faculty manager to change/delete education group when period is closed

uclouvain/osis,uclouvain/OSIS-Louvain,uclouvain/OSIS-Louvain,uclouvain/OSIS-Louvain,uclouvain/osis,uclouvain/osis,uclouvain/osis