update best score when assigning students
update best score when assigning students

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