[css-contain-2] Allow scroll position to be restored when element becomes un-skipped with content-visibility #5869
Description
This depends on #5868. If we agree that skipped contents should not contribute to the overflow (i.e. that the scroll thumb does not indicate size of content), then it would still be nice if we allow for that scroll position to be restored when the element is un-hidden.
The current spec compliant behavior (if #5868 is resolved not to include contents in overflow) would cause the scroll offset to be essentially reset when the element is hidden via content-visibility and then shown again. This is not as ergonomic for developers as it could be.