fix name uniqueness validation for subgroups
requested to merge 345-cannot-create-2-assets-assettype-with-the-same-name-in-different-groups-subgroups into master
La vérification des quotas de chaque projet est mise en place en mode non bloquant. Plus d'information sur : https://doc-si.inria.fr/pages/viewpage.action?pageId=146834656
Quota verification is enabled for projects in non-blocking mode. More information: https://doc-si.inria.fr/pages/viewpage.action?pageId=146834656