patch 8.2.2299: Vim9: invalid memory access making error message flaky Commit: https://github.com/vim/vim/commit/d1510ee9469f623c872a18b6e3c3666c0fb23c58 Author: Bram Moolenaar <Bram@vim.org> Date: Mon Jan 4 16:15:58 2021 +0100 patch 8.2.2299: Vim9: invalid memory access making error message flaky Problem: Vim9: invalid memory access making error message flaky. Solution: Do not check cmd_argt for CMD_USER. (issue https://github.com/vim/vim/issues/7467)

" For Yiddish capitals should not be checked.  But only change the
" 'spellcapcheck' option when it is not at its default value.
let s:spc = &l:spc
setlocal spc&
if s:spc == &l:spc
  setlocal spc=
else
  let &l:spc = s:spc
endif
unlet s:spc