#5232 Correctly initialize variable to prevent exception on error
requested to merge feature-s/5232-fix-exception-on-sample-set-error into feature-sc/5219-hotfix-2024-01
[A venir] Mise en place de quotas sur nos instances GitLab. Plus d'information sur : https://doc-si.inria.fr/pages/viewpage.action?pageId=129728565
[Coming soon] Quotas installation on our GitLab instances. More information: https://doc-si.inria.fr/pages/viewpage.action?pageId=129728565