patch 9.0.1189: invalid memory access with folding and using "L" Commit: https://github.com/vim/vim/commit/232bdaaca98c34a99ffadf27bf6ee08be6cc8f6a Author: Bram Moolenaar <Bram@vim.org> Date: Fri Jan 13 14:17:58 2023 +0000 patch 9.0.1189: invalid memory access with folding and using "L" Problem: Invalid memory access with folding and using "L". Solution: Prevent the cursor from moving to line zero.

|f+0&#ffffff0|i|r|s|t| |l|i|n|e| @1|r+0&#ffd7ff255|i|g|h|t| |a|f|t|e|r| |t|h|e| |t|e|x|t| |r|i|g|h|t| |a|f|t|e|r| |t|h|e| |t|e|x|t| |r|i|g|h|t| 
|0+0&#ffffff0| >1| |2| |3| |4| |5| |6| |7| |8| |9| |1|0| |1@1| |1|2| |1|3| |1|4| |1|5| |1|6| |1|7| |1|8| |1|9| |2|0| |2|1| |2@1| |2
|t|h|i|r|d| @54
|f|o|u|r|t|h| @53
|~+0#4040ff13&| @58
|~| @58
|~| @58
| +0#0000000&@41|2|,|3| @10|A|l@1|