This is a follow-up to Bug 262415 that adds a test case.
<rdar://problem/116551713>
Pull request: https://github.com/WebKit/WebKit/pull/18734
Committed 269083@main (271bf5cc9d33): <https://commits.webkit.org/269083@main> Reviewed commits have been landed. Closing PR #18734 and removing active labels.