patch 8.2.1677: memory access errors when calling setloclist() in autocommand Commit: https://github.com/vim/vim/commit/4d170af0a9379da64d67dc3fa7cc7297956c6f52 Author: Bram Moolenaar <Bram@vim.org> Date: Sun Sep 13 22:21:22 2020 +0200 patch 8.2.1677: memory access errors when calling setloclist() in autocommand Problem: Memory access errors when calling setloclist() in an autocommand. Solution: Give an error if the list was changed unexpectedly. (closes https://github.com/vim/vim/issues/6946)

" Vim plugin for downloading spell files
" Maintainer:  Bram Moolenaar <Bram@vim.org>
" Last Change: 2006 Feb 01

" Exit quickly when:
" - this plugin was already loaded
" - when 'compatible' is set
" - some autocommands are already taking care of spell files
if exists("loaded_spellfile_plugin") || &cp || exists("#SpellFileMissing")
  finish
endif
let loaded_spellfile_plugin = 1

" The function is in the autoload directory.
autocmd SpellFileMissing * call spellfile#LoadFile(expand('<amatch>'))