commit https://github.com/vim/vim/commit/37a8de17d4dfd3d463960c38a204ce399c8e19d4 Author: Bram Moolenaar <Bram@vim.org> Date: Tue Sep 1 16:05:00 2015 +0200 patch 7.4.844 Problem: When '#' is in 'isident' the is# comparator doesn't work. Solution: Don't use vim_isIDc(). (Yasuhiro Matsumoto)

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