commit https://github.com/vim/vim/commit/a890f5e34887bff7616bdb4b9ee0bf98c8d2a8f0 Author: Bram Moolenaar <Bram@vim.org> Date: Sun Jun 12 23:03:19 2016 +0200 patch 7.4.1926 Problem: Possible crash with many history items. Solution: Avoid the index going past the last item.

" 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