commit https://github.com/vim/vim/commit/4119cf80e1e534057680f9543e73edf7967c2440 Author: Bram Moolenaar <Bram@vim.org> Date: Sun Jan 17 14:59:01 2016 +0100 patch 7.4.1113 Problem: Using {ns} in variable name does not work. (lilydjwg) Solution: Fix recognizing colon. Add a test.

" 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