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)

| +0#af5f00255#ffffff0@1|1| |o+0#0000000&|n|e| |o|n|e| |o|n|e| @59
| +0#af5f00255&@1|2| |t+0#0000000&|w|o| |t|w|o| |t|w|o| @59
| +0#af5f00255&@3| +0#0000000&@2|└+0&#ffff4012|─| |V|i|r|t|u|a|l| |t|e|x|t| |b|e|l|o|w| |t|h|e| |2|n|d| |l|i|n|e| +0&#ffffff0@33
| +0#af5f00255&@1|3| |x+0#0000000&>x| @68
| +0#af5f00255&@1|4| |t+0#0000000&|h|r|e@1| |t|h|r|e@1| |t|h|r|e@1| @53
|~+0#4040ff13&| @73
|~| @73
|:+0#0000000&|s|e|t| |n|o|w|r|a|p| @45|3|,|2| @10|A|l@1|