patch 8.0.1190: unusable after opening new window in BufWritePre event commit https://github.com/vim/vim/commit/2c33d7bb69c4c2c5b0e39b03cc4b0c04cfdfbb0b Author: Bram Moolenaar <Bram@vim.org> Date: Sat Oct 14 16:06:20 2017 +0200 patch 8.0.1190: unusable after opening new window in BufWritePre event Problem: Vim becomes unusable after opening new window in BufWritePre event. Solution: Call not_exiting(). (Martin Tournoij, closes #2205) Also for "2q" when a help window is open. Add a test.

" Vim filetype plugin file
" Language:     Vim's quickfix window
" Maintainer:   Lech Lorens <Lech.Lorens@gmail.com>
" Last Changed: 30 Apr 2012

if exists("b:did_ftplugin")
  finish
endif

" Don't load another plugin for this buffer
let b:did_ftplugin = 1

let b:undo_ftplugin = "set stl<"

" Display the command that produced the list in the quickfix window:
setlocal stl=%t%{exists('w:quickfix_title')?\ '\ '.w:quickfix_title\ :\ ''}\ %=%-15(%l,%c%V%)\ %P