patch 9.0.1578: SpellCap highlight not always updated when needed Commit: https://github.com/vim/vim/commit/2ac6497f0ef186f0e3ba67d7f0a485bfb612bb08 Author: Luuk van Baal <luukvbaal@gmail.com> Date: Thu May 25 17:14:42 2023 +0100 patch 9.0.1578: SpellCap highlight not always updated when needed Problem: SpellCap highlight not always updated when needed. Solution: Handle updating line below closed fold and other situations where only part of the window is redrawn. (Luuk van Baal, closes #12428, closes #12420)

|t+0&#ffffff0|e|x|t| |a+0#4040ff13&|f|t|e|r| >o+0#0000000&|n|e| |t|e|x|t| |b+0#4040ff13&|e|f|o|r|e| |t+0#0000000&|w|o| @29
@60
|f|u|n|c|t|i|o|n|(|a+0&#ffd7ff255|r|g|:| |a+0&#ffffff0|r|g|)| @41
|~+0#4040ff13&| @58
|~| @58
|~| @58
|~| @58
|-+2#0000000&@1| |I|N|S|E|R|T| |-@1| +0&&@29|1|,|6|-|1|2| @7|A|l@1|