supannEtablissement field should be multivaluated
Descriptive title for this enhancement
supann field supannEtablissement is multivalued see https://services.renater.fr/documentation/supann/supann2018/recommandations2018/attributs/supannEtablissement
Actual behavior
FD UID allow only one value
Expected behavior
change FD UI to allowed multivalued attribute for supannEtablissement
Benefits
more SUPANN compatible