[Webkit-unassigned] [Bug 226816] [iOS 15 Regression]: scroll position resets when using scroll snap

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=226816

--- Comment #4 from Martin Robinson <mrobinson at webkit.org> ---
Here's what I'm seeing:

Expected behavior:
When either dragging the scroll view and releasing or momentum scrolling (without enough momentum to move to the next scroll position), the view should animate while snapping back to the previous snap point.

Actual behavior:
When dragging the scroll view and releasing, the view animates back as expected. When using momentum scrolling (but not enough to move to the next snap position), the view snaps back without animation.

So there are two issues here, I think:

1. The lack of animation when snapping back after a momentum scrolling. I'm investigating this now. 
2. Whether momentum scrolls *should* snap back at all. It's arguable that any momentum scroll at all, no matter how small should always snap to the next snap position. This is a very trivial change.

Regardless of what happens for 2, there are situations where we must snap back and in those cases it should animate back to the original snap position.

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