snippet with prefixes of angle brackets and/or hyphens do not expand

[jm3]

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: http://flight-manual.atom.io/hacking-atom/sections/debugging/#using-safe-mode
  • Followed all applicable steps in the debugging guide: http://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

snippets with prefixes like >> or -- (or ->, etc.) do not expand.

Steps to Reproduce

1. create a snippet like so:

   '.source.gfm, .text.plain, .text.html.basic':
   'test (arrows)':
   'prefix': 'xx'
   'body': '→ ←'

2. Type "xx" in a plain text or markdown file, and snippet correctly expands to → ←
3. Now change the snippet's prefix from xx to >>

Expected behavior: snippet should expand, as before

Actual behavior: nothing happens, snippet is not suggested and does not expand.

Reproduces how often: 100%

Versions

% uname -a
Darwin mac 16.7.0 Darwin Kernel Version 16.7.0: Thu Jun 15 17:36:27 PDT 2017; root:xnu-3789.70.16~2/RELEASE_X86_64 x86_64

% atom --version
Atom    : 1.22.0
Electron: 1.6.15
Chrome  : 56.0.2924.87
Node    : 7.4.0

% apm --version
apm  1.18.8
npm  3.10.10
node 6.9.5 x64
python 2.7.10
git 2.13.5

Additional Information

Tested in both plain text and in Markdown.

[savetheclocktower]

Can’t reproduce this in plain text or markdown, so I think this has been fixed. Please re-open if this is still occurring for you and we can figure out what else separates your environment from mine.