patch 8.2.4237: record buffer wrong if character in Select mode was not typed Commit: https://github.com/vim/vim/commit/fbf4f1ca159028382eaeb3bfc31bb6bb96dbb67a Author: zeertzjq <zeertzjq@outlook.com> Date: Fri Jan 28 12:50:43 2022 +0000 patch 8.2.4237: record buffer wrong if character in Select mode was not typed Problem: Record buffer wrong if character in Select mode was not typed. Solution: Only delete the tail from the record buffer if the character was typed. (closes #9650)

" Tests for :undo

func Test_ex_undo()
  new ex-undo
  setlocal ul=10
  exe "normal ione\n\<Esc>"
  setlocal ul=10
  exe "normal itwo\n\<Esc>"
  setlocal ul=10
  exe "normal ithree\n\<Esc>"
  call assert_equal(4, line('$'))
  undo
  call assert_equal(3, line('$'))
  undo 1
  call assert_equal(2, line('$'))
  undo 0
  call assert_equal(1, line('$'))
  quit!
endfunc

" vim: shiftwidth=2 sts=2 expandtab