patch 9.0.0943: pretending to go out of Insert mode when Esc is received Commit: https://github.com/vim/vim/commit/d330e8422d1c4670a241ce8ebde4c37918538dce Author: Bram Moolenaar <Bram@vim.org> Date: Thu Nov 24 20:23:24 2022 +0000 patch 9.0.0943: pretending to go out of Insert mode when Esc is received Problem: Pretending to go out of Insert mode when Esc is received has side effects. Solution: When the kitty keyboard protocol is enabled expect Esc to always be the start of an escape sequence.

" Tests for saving/loading a file with some lines ending in
" CTRL-M, some not

func Test_lineending()
  let l = ["this line ends in a\<CR>",
	      \ "this one doesn't",
	      \ "this one does\<CR>",
	      \ "and the last one doesn't"]
  set ta tx
  enew!
  call append(0, l)
  $delete
  write Xfile1
  bwipe Xfile1
  edit Xfile1
  let t = getline(1, '$')
  call assert_equal(l, t)
  new | only
  call delete('Xfile1')
endfunc

" vim: shiftwidth=2 sts=2 expandtab