patch 8.0.1441: using ":undo 0" leaves undo in wrong state commit https://github.com/vim/vim/commit/ce46d934af35d0f774be7f996001db03cf0b894a Author: Bram Moolenaar <Bram@vim.org> Date: Tue Jan 30 22:46:06 2018 +0100 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Problem: Using ":undo 0" leaves undo in wrong state. Solution: Instead of searching for state 1 and go above, just use the start. (Ozaki Kiichi, closes #2595)

" 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