OSIS-4728 fixed display of default error message when form contains at least 1 error
OSIS-4728 fixed display of default error message when form contains at least 1 error

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