I can't reproduce this consistently, but I've observed at least one crash...
Created attachment 441614 [details] Put the null check back
Comment on attachment 441614 [details] Put the null check back Thanks for the review!
Committed r284382 (243165@main): <https://commits.webkit.org/243165@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 441614 [details].
<rdar://problem/84376725>