commit https://github.com/vim/vim/commit/54f018cd5994c3ffcd0740526e56db6934edf1f2 Author: Bram Moolenaar <Bram@vim.org> Date: Tue Sep 15 17:30:40 2015 +0200 patch 7.4.868 Problem: 'smarttab' is also effective when 'paste' is enabled. (Alexander Monakov) Solution: Disable 'smarttab' when 'paste' is set. (Christian Brabandt) Do the same for 'expandtab'.

Test A:
  - file name displayed: test://bar.txt
  - quickfix claims that the file name displayed is: test://bar.txt
Test B:
  - number of window open: 2
Test C:
  - 'buftype' of the location list window: quickfix
  - buffer displayed in the 2nd window: test://quux.txt