patch 9.0.1568: with 'smoothscroll' cursor may move below botline Commit: https://github.com/vim/vim/commit/d49f646bf56b29d44bbb16e79bc877b59aab38ac Author: Luuk van Baal <luukvbaal@gmail.com> Date: Fri May 19 14:04:47 2023 +0100 patch 9.0.1568: with 'smoothscroll' cursor may move below botline Problem: With 'smoothscroll' cursor may move below botline. Solution: Call redraw_later() if needed, Compute cursor row with adjusted condition. (Luuk van Baal, closes #12415)

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|f|o@1| |2| @64
|f|o@1| |3| @64
|f|o@1| |4| @64
|a|b|c|||d|e|f| @62
|~+0#4040ff13&| @68
|~| @68
|~| @68
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