Cannot commit message beginning with a hash (#)

[vitorandos]

Prerequisites

• 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

The commit button does not work when message begins with a hash (#).

For example:

Steps to Reproduce

1. Open GIT panel
2. Stage changes
3. Enter commit message starting with hash (#)
4. Try to press commit button

Expected behavior:

Commit is executed.

Actual behavior:

Commit button does not work, ie, cannot press it.

Reproduces how often:

Always.

Versions

atom 1.38.2
git 2.21.0
macOS Mojave 10.14.5

Additional Information

Similar issue on #962. Since that one is closed, I was not sure if I should comment there or open another one and could not find anything on how to proceed on this case. Please let me know otherwise!
The issue is mentioned to be fixed on #1500, although I still encounter the bug.
Also, I have set core.commentChar to % and cleanup to verbatim on git config but I still get the same bug on Atom.
Might be related to #2182.

[guilherme-mendes]

I can reproduce the issue on Ubuntu 16.04 with atom 1.38.2 and git 2.7.4.

[corvidism]

I also have this problem. The git tab will not let me commit with #, but my custom comment char is accepted in the commit message.

Ubuntu 19.10, Atom 1.46.0, git 2.20.1.

[jnawk]

problem exists with Ubuntu 20.04.1 LTS, Atom 1.49.0, git 2.25.1

[adamfranco]

Problem exists on OS X 10.10.5, Atom 1.52.0, git version 2.27.0