Any :scope or & selectors in <scope-start> are interpreted as defined for its outer context. https://drafts.csswg.org/css-cascade-6/#scope-limits
<rdar://problem/119661541>
Pull request: https://github.com/WebKit/WebKit/pull/21791
Committed 272065@main (f99c196be294): <https://commits.webkit.org/272065@main> Reviewed commits have been landed. Closing PR #21791 and removing active labels.