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)

|O+0&#ffffff0|n|e| |o+0#4040ff13#ffff4012|n|e| |o+0#0000000#ffffff0|n|e| |o+0#4040ff13#ffff4012|n|e| |o+0#0000000#ffffff0|n|e| @55
|T|w|o| |t+0#4040ff13#ffff4012|w|o| |t+0#0000000#ffffff0|w|o| |t+0#4040ff13#ffff4012|w|o| |t+0#0000000#ffffff0|w|o| @55
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|~+0#4040ff13&| @73
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|-+2#0000000&@1| |V|I|S|U|A|L| |-@1| +0&&@34|2|0| @7|3|,|2@1| @9|A|l@1|