patch 8.0.0548: saving the redo buffer only works one time commit https://github.com/vim/vim/commit/d4863aa99e0527e9505c79cbeafc68a6832200bf Author: Bram Moolenaar <Bram@vim.org> Date: Fri Apr 7 19:50:12 2017 +0200 patch 8.0.0548: saving the redo buffer only works one time Problem: Saving the redo buffer only works one time, resulting in the "." command not working well for a function call inside another function call. (Ingo Karkat) Solution: Save the redo buffer at every user function call. (closes #1619)

" Test feedkeys() function.

func Test_feedkeys_x_with_empty_string()
  new
  call feedkeys("ifoo\<Esc>")
  call assert_equal('', getline('.'))
  call feedkeys('', 'x')
  call assert_equal('foo', getline('.'))

  " check it goes back to normal mode immediately.
  call feedkeys('i', 'x')
  call assert_equal('foo', getline('.'))
  quit!
endfunc