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)

| +0#af5f00255#ffffff0@1|1| >v+0#0000000&|i|m|9|s|c|r|i|p|t| @45
| +0#af5f00255&@1|2| | +0#0000000&@55
| +0#af5f00255&@3| +0#0000000&|T+0#ffffff16#e000002|h|e| |q|u|i|c|k| |b|r|o|w|n| |f|o|x| |j|u|m|p|s| |o|v|e|r| |t|h|e| |l|a|z|y| |d|o|g| +0#0000000#ffffff0@11
| +0#af5f00255&@1|3| |t+0#0000000&|h|r|e@1| @50
| +0#af5f00255&@1|4| | +0#0000000&@55
| +0#af5f00255&@3|T+0#0000000#ffd7ff255|h|e| |s|l|o|w| |f|o|x| |b|u|m|p|s| |i|n|t|o| |t|h|e| |l|a|z|y| |d|o|g| +0&#ffffff0@19
|~+0#4040ff13&| @58
|:+0#0000000&|s|e|t| |n|u|m|b|e|r| @30|1|,|1| @10|A|l@1|