[Tab] Skip calling ViewPager2#setCurrentItem() when the active page i… #3918
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Closes #1865.
The current TabLayoutMediator implementation has an issue that it invokes ViewPager2#setCurrentItem() when a user navigates between pages by a swipe operation. The method call aborts the scrolling animation that the user made and starts a new scroll animation when smoothScroll = true, or stops scrolling immediately when smoothScroll = false.
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Link to GitHub issues it solves. (closes