Improve assertion in ValidatedFormListedElement().
Pull request: https://github.com/WebKit/WebKit/pull/11279
merge-queue failed to commit PR to repository. To retry, remove any blocking labels and re-apply merge-queue label
Committed 261441@main (1171f470c98f): <https://commits.webkit.org/261441@main> Reviewed commits have been landed. Closing PR #11279 and removing active labels.
<rdar://problem/106503200>
Reverted by https://github.com/WebKit/WebKit/pull/11343
Re-opening for pull request https://github.com/WebKit/WebKit/pull/11343
Committed 261486@main (f12de61b9fdb): <https://commits.webkit.org/261486@main> Reviewed commits have been landed. Closing PR #11343 and removing active labels.
Re-opening for pull request https://github.com/WebKit/WebKit/pull/11364
Committed 261506@main (ac77953b70bf): <https://commits.webkit.org/261506@main> Reviewed commits have been landed. Closing PR #11364 and removing active labels.