ssia
This has regressed with the refactoring patch when core flex layout got moved to a dedicated class and struct FlexItem was introduced.
Created attachment 459917 [details] Patch
Committed r295081 (251176@main): <https://commits.webkit.org/251176@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 459917 [details].
<rdar://problem/94200244>