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#4040ff13#ffffff0@2|t+0#0000000&|h| |l|o|t|s| |o|f| |t|e|x|t| |w|i|t|h| |l|o|t|s| |o|f| |t|e|x|t| |w|i|t
|h| |l|o|t|s| |o|f| |t|e|x|t| |w|i|t|h| |l|o|t|s| |o|f| |t|e|x|t| |w|i|t|h| |l|o
|t|s| |o|f| |t|e|x>t| |w|i|t|h| |l|o|t|s| |o|f| |t|e|x|t| |w|i|t|h| |l|o|t|s| |o
|f| |t|e|x|t| |w|i|t|h| |l|o|t|s| |o|f| |t|e|x|t| |w|i|t|h| |l|o|t|s| |o|f| |t|e
|x|t| |w|i|t|h| |l|o|t|s| |o|f| |t|e|x|t| |w|i|t|h| |l|o|t|s| |o|f| |t|e|x|t| |w
| @21|3|,|1|3|0| @8|6@1|%|