Hide VCS Ignored Files does not work if !FileName is used in .gitignore

[PRemmen]

Prerequisites

• [ x ] Put an X between the brackets on this line if you have done all of the following:
  • Reproduced the problem in Safe Mode: https://flight-manual.atom.io/hacking-atom/sections/debugging/#using-safe-mode
  • Followed all applicable steps in the debugging guide: https://flight-manual.atom.io/hacking-atom/sections/debugging/
  • Checked the FAQs on the message board for common solutions: https://discuss.atom.io/c/faq
  • Checked that your issue isn't already filed: https://github.com/issues?utf8=✓&q=is%3Aissue+user%3Aatom
  • Checked that there is not already an Atom package that provides the described functionality: https://atom.io/packages

Description

If I use !FileName to exclude certain files that would have been ignored otherwise, Atoms function to show and hide ignored files from VCS does not work

Steps to Reproduce

Use !FileName in your gitignore

Expected behavior:

with i I should be able to toggle ignored files from VCS (git)

Actual behavior:

see above

Reproduces how often:

all the time

Versions

Atom    : 1.41.0
Electron: 4.2.7
Chrome  : 69.0.3497.128
Node    : 10.11.0

Additional Information

Probably introduced with atom 1.41 on my machine. I've only tested it with Python repositories, running on windows