patch 9.0.1719: if_lua: crash for for Lua functions invoked via Vim callbacks Commit: https://github.com/vim/vim/commit/8a35033782de4e1f43fba15543fc8fb458944194 Author: Jesse Pavel <jpavel@alum.mit.edu> Date: Sun Aug 13 22:05:45 2023 -0400 patch 9.0.1719: if_lua: crash for for Lua functions invoked via Vim callbacks Problem: if_lua: crash for Lua functions invoked via Vim callbacks Solution: Use Lua registry rather than upvalues for udata cache closes: #12785 Signed-off-by: Christian Brabandt <cb@256bit.org> Co-authored-by: Jesse Pavel <jpavel@alum.mit.edu>

" 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