Mostly a progression from Bug 241098, but a couple of small regressions. https://wpt.fyi/results/css/selectors/invalidation/is-pseudo-containing-complex-in-has.html?q=is%3Adifferent&run_id=5702899928662016&run_id=5728111286026240 (These tests seem to have been modified at near identical time to that bug being committed: https://github.com/web-platform-tests/wpt/commit/0464e4ab75ef1fa16255c39355d11853f2a1c6fc)
<rdar://problem/96218107>