Hi Team, I am creating this bug to update our 'assert_selection.js' test script to the latest from source.chromium.org because the latest needed support of RegExp lookbehind assertions. We had to use old version for our HTML Editing test cases. I will do PR in few weeks because RegExp lookbehind assertions support just landed and I want to give it more time to bake and does not revert etc because then it would be cycle of back and forth updating test expectations. But just wanted to create a bug for future reference. Thanks!
<rdar://problem/103596542>
Committed 258229@main (d41b2a8b640c): <https://commits.webkit.org/258229@main> Reviewed commits have been landed. Closing PR #7949 and removing active labels.