Improve workspace-unsafe form validation.

Closes #3471675

added 1 commit

• 74ca13e9 - Fix phpstan.

Compare with previous version

added 102 commits

• 74ca13e9...7031fb42 - 100 commits from branch project:11.x
• fa189e76 - Merge branch '11.x' into 3471675-improve-form-validation
• 3fd8abff - Fix phpstan baseline.

Compare with previous version

added 58 commits

• 3fd8abff...ee894196 - 57 commits from branch project:11.x
• 9d426bf9 - Merge branch '11.x' into 3471675-improve-form-validation

Compare with previous version

added 51 commits

• 9d426bf9...873f84fc - 50 commits from branch project:11.x
• f34d680f - Merge branch '11.x' into 3471675-improve-form-validation

Compare with previous version

added 92 commits

• f34d680f...daf3cd72 - 90 commits from branch project:11.x
• 0f72a747 - Merge branch '11.x' into 3471675-improve-form-validation
• 4e2852ae - Work around inability to order hooks easily.

Compare with previous version