Carried over from lee-dohm/red-wavy-underline#10 since it's more a core issue.

Prerequisites

• Can you reproduce the problem in safe mode?
• Are you running the latest version of Atom?
• Did you check the debugging guide?
• Did you check the FAQs on Discuss?
• Are you reporting to the correct repository?
• Did you perform a cursory search to see if your bug or enhancement is already reported?

For more information on how to write a good bug report or enhancement request, see the CONTRIBUTING guide.

Description

The automatic translation for removing Shadow DOM selectors lowers specificity. This can cause some packages to break.

Steps to Reproduce

1. Checkout recent master (1.13.0-dev-602af52 or later)
2. apm install red-wavy-underline@0.3.0
3. Make sure you have the spell-check package enabled.
4. Open a file and misspell a word. Like mispell.

Expected behavior:

There should only be the red wavy underline.

Actual behavior:

There are the red wavy underline and the default dashed underline.

You can get this information from executing atom --version and apm --version at the command line. Also, please include the OS and what version of the OS you're running.

macOS 10.12 (16A323)

Atom    : 1.13.0-dev-602af52
Electron: 1.3.6
Chrome  : 52.0.2743.82
Node    : 6.3.0

apm  1.13.0
npm  3.10.5
node 4.4.5
python 2.7.10
git 2.9.1

Affected packages

• red-wavy-underline