patch 9.0.0458: splitting a line with a text prop "above" moves it down Commit: https://github.com/vim/vim/commit/3b93cf218fc70897c11de0415221e7899e9a527a Author: Bram Moolenaar <Bram@vim.org> Date: Tue Sep 13 18:34:18 2022 +0100 patch 9.0.0458: splitting a line with a text prop "above" moves it down Problem: Splitting a line with a text prop "above" moves it to a new line below. Solution: Keep an "above" text prop above the first line.

|1+0&#ffff4012|2|3| +0&#ffffff0@4|x| @65
|1+0&#ffff4012|2|3|4|5|6|7| +0&#ffffff0|x| @65
|1+0&#ffff4012|2|3|4|5|6|7|8| +0&#ffffff0@6> |x| @57
|1+0&#ffff4012|2|3|4|5|6|7|8|9| +0&#ffffff0@6|x| @57
@8|A+0&#ffff4012|B|C|x+0&#ffffff0| @62
@8|x|A+0&#ffff4012|B|C| +0&#ffffff0@62
|~+0#4040ff13&| @73
| +0#0000000&@56|3|,|1|-|1|6| @7|A|l@1|