OSIS-5130 fixed performance due to regex on each cms data for each learning units in tree
OSIS-5130 fixed performance due to regex on each cms data for each learning units in tree

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