patch 8.2.4327: may end up with no current buffer Commit: https://github.com/vim/vim/commit/e3537aec2f8d6470010547af28dcbd83d41461b8 Author: Bram Moolenaar <Bram@vim.org> Date: Tue Feb 8 15:05:20 2022 +0000 patch 8.2.4327: may end up with no current buffer Problem: May end up with no current buffer. Solution: When deleting the current buffer to not pick a quickfix buffer as the new current buffer.

" 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