We have some test failures due to not invalidating the effect when KeyframeEffect.iterationComposite changes, specifically in: web-animations/animation-model/keyframe-effects/effect-value-context-filling.html web-animations/interfaces/KeyframeEffect/iterationComposite.html
Pull request: https://github.com/WebKit/WebKit/pull/5635
Committed 255865@main (a2043cb59ed0): <https://commits.webkit.org/255865@main> Reviewed commits have been landed. Closing PR #5635 and removing active labels.
<rdar://problem/101454060>