Scroll latching state is not a stack
Created attachment 394987 [details] Patch
Committed r259282: <https://trac.webkit.org/changeset/259282> All reviewed patches have been landed. Closing bug and clearing flags on attachment 394987 [details].
<rdar://problem/61092220>
Re-opened since this is blocked by bug 209860
Reverted in r259347, please see bug 209860 for details.
Created attachment 395186 [details] Patch
It actually is a stack, of frames.