REDMINE_ISSUE-20476 | Multiple checkbox ne conserve pas valeur initial

fix multiple checkbox loosing initial value & changes not detected after fixing it

assigned to @cblanchon

added 6 commits

• 7669c26a...b01e0eae - 5 commits from branch develop
• f477c27d - Merge branch 'develop' into redmine-issues/20476

Compare with previous version

merged

mentioned in commit 00587f54