patch 8.2.0867: using {xxx} for encoding a modifier is not nice Commit: https://github.com/vim/vim/commit/fccd93f0917234b962ce07d1df3adf9d7105936f Author: Bram Moolenaar <Bram@vim.org> Date: Sun May 31 22:06:51 2020 +0200 patch 8.2.0867: using \{xxx} for encoding a modifier is not nice Problem: Using \{xxx} for encoding a modifier is not nice. Solution: Use \<*xxx> instead, since it's the same as \<xxx> but producing a different code.

" 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