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.

>s+0&#ffffff0|o|m|e| |t|e|x|t| |t+0&#5fd7ff255|o| |w|o|r|k| +0&#ffffff0|w|i|t|h| @52
|5|1| @14|╔+0#0000001#ffd7ff255|═@9|╗| +0#0000000#ffffff0@45
|5|2| @14|║+0#0000001#ffd7ff255| |t|h|e| |t|e|x|t| |║| +0#0000000#ffffff0@45
|5|3| @14|╚+0#0000001#ffd7ff255|═@9|╝| +0#0000000#ffffff0@45
|5|4| @72
|5@1| @72
|5|6| @72
|5|7| @72
|5|8| @72
@57|5|0|,|1| @9|5|3|%|