patch 8.2.4505: Vim9: outdated "autocmd nested" still works Commit: https://github.com/vim/vim/commit/f07751457c39a645009c17cd837131f6bcdd7d55 Author: Bram Moolenaar <Bram@vim.org> Date: Fri Mar 4 20:10:38 2022 +0000 patch 8.2.4505: Vim9: outdated "autocmd nested" still works Problem: Vim9: outdated "autocmd nested" still works. Solution: Do not accept the :autocmd argument "nested" without "++" in Vim9 script.

| +8#0000001#e0e0e08|+| |[|N|o| |N|a|m|e|]| | +2#0000000#ffffff0|[|N|o| |N|a|m|e|]| | +1&&@49|X+8#0000001#e0e0e08
> +0#0000000#ffffff0@74
|~+0&#e0e0e08| @73
|~| @6|o+0#0000001#ffd7ff255|t|h|e|r| |t|a|b| @10| +0#0000000#e0e0e08@46
|~| @6|a+0#0000001#ffd7ff255| |c+0#ff404010&|o|m@1|e|n|t| +0#0000001&|l|i|n|e| @5| +0#0000000#e0e0e08@46
|~| @73
|~| @73
|~| @73
|~| @73
| +0&#ffffff0@56|0|,|0|-|1| @8|A|l@1|