patch 8.2.3556: filler lines are incorrect for other window in diff mode Commit: https://github.com/vim/vim/commit/841c225b9ef8c5bdf5e02968a0bd62521fff6ca8 Author: Bram Moolenaar <Bram@vim.org> Date: Fri Oct 22 20:56:55 2021 +0100 patch 8.2.3556: filler lines are incorrect for other window in diff mode Problem: Filler lines are incorrect for other window in diff mode after making a change. Solution: Copy filler lines from the current window. (closes #8809)

|4+0&#ffffff0|6| @9|╔+0#0000001#ffd7ff255|═@9|╗| +0#0000000#ffffff0@50
|4|7| @9|║+0#0000001#ffd7ff255| |t|h|e| |t|e|x|t| |║| +0#0000000#ffffff0@50
|4|8| @9|╚+0#0000001#ffd7ff255|═@9|╝| +0#0000000#ffffff0@50
>t|e|x|t| |t+0&#5fd7ff255|o| |w|o|r|k| +0&#ffffff0|w|i|t|h| @57
|5|1| @72
|5|2| @72
|5|3| @72
|5|4| @72
|5@1| @72
@57|4|9|,|1| @9|5|0|%|