patch 8.2.1178: Vim9: filter function recognized as command modifier Commit: https://github.com/vim/vim/commit/b074e8b8d4d3cefefc675dfaf3982d388ee07772 Author: Bram Moolenaar <Bram@vim.org> Date: Sat Jul 11 13:40:45 2020 +0200 patch 8.2.1178: Vim9: filter function recognized as command modifier Problem: Vim9: filter function recognized as command modifier, leading to a crash. Solution: Clear cmdmod after freeing items. Do not recognize a command modifier followed by non-white space. (closes #6434)

" Tests for the :set command

function Test_set_backslash()
  let isk_save = &isk

  set isk=a,b,c
  set isk+=d
  call assert_equal('a,b,c,d', &isk)
  set isk+=\\,e
  call assert_equal('a,b,c,d,\,e', &isk)
  set isk-=e
  call assert_equal('a,b,c,d,\', &isk)
  set isk-=\\
  call assert_equal('a,b,c,d', &isk)

  let &isk = isk_save
endfunction

function Test_set_add()
  let wig_save = &wig

  set wildignore=*.png,
  set wildignore+=*.jpg
  call assert_equal('*.png,*.jpg', &wig)

  let &wig = wig_save
endfunction