We need to breakout out of iteration if the item is nullopt.
<rdar://problem/86152753>
Created attachment 447054 [details] Patch
Comment on attachment 447054 [details] Patch We should consider modifying DisplayList::Iterator::operator== to see if this behavior can automatically occur for all display list iteration. This is fine for now, though.
Committed r287048 (245245@main): <https://commits.webkit.org/245245@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 447054 [details].