isIntersecting should be false if the intersection ratio is smaller than the smallest threshold value. We currently set it to true whenever the intersection ratio is non-zero, but that's incorrect if the smallest threshold is non-zero.
Created attachment 353732 [details]
Comment on attachment 353732 [details]
Clearing flags on attachment: 353732
Committed r237798: <https://trac.webkit.org/changeset/237798>
All reviewed patches have been landed. Closing bug.