commit https://github.com/vim/vim/commit/5d8afebb5bf7fb1e8ce06062451dc6a1f9a53ac0 Author: Bram Moolenaar <Bram@vim.org> Date: Thu Nov 19 19:55:16 2015 +0100 patch 7.4.928 Problem: A clientserver message interrupts handling keys of a mapping. Solution: Have mch_inchar() send control back to WaitForChar when it is interrupted by server message. (James Kolb)

Tests for quickfix window's title     vim: set ft=vim :

STARTTEST
:so small.vim
:if !has('quickfix') | e! test.ok | wq! test.out | endif
:set efm=%E%f:%l:%c:%m
:cgetexpr ['file:1:1:message']
:let qflist=getqflist()
:call setqflist(qflist, 'r')
:copen
:let g:quickfix_title=w:quickfix_title
:wincmd p
:$put =g:quickfix_title
:/^Results/,$w test.out
:qa!
ENDTEST

Results of test_qf_title: