Add null checks in FrameSelection::selectFrameElementInParentIfFullySelected
Created attachment 429058 [details] Patch
<rdar://problem/78200977>
I've been told this may have been fixed with https://trac.webkit.org/changeset/277600/webkit Not sure if we still want this to be extra safe
Committed r277799 (237956@main): <https://commits.webkit.org/237956@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 429058 [details].