Losses syntax highlighting and text becomes grey when adding erb tags in Ruby

[anihakutin]

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

Code after inserted erb text becomes grey and losses syntax highlighting.
Closing the file and then reopening it fixes the issue.
I did see this mentioned in issue #18342 but that was closed and the syntax highlighting doesn't seem to be fixed.
Safe mode does not solve this problem.

Steps to Reproduce

1. Create .erb file with html
2. Add erb tag to html element
3. Text will lose syntax highlighting (see screen recording below)

Edit by @rsese to add more detailed repro steps

1. Create and save a .erb file with this content:

<h1>Update Owner</h1>

<form method="post">
  <input action="/owners/" type="hidden" id="hidden" name="_method" value="patch">

  <label for="">Name: </label>
</form>

2. Start typing <%=@owner.id%> after the "/owners/" in the <input> tag.

**Interesting note:
If I add the "=" after i close the tag it highlights and formats correctly, see 2nd screen recording.

Expected behavior: [What you expect to happen]
Highlighter should highlight syntax correctly

Actual behavior: [What actually happens]

After typing the > in <%=@owner.id%>, the rest of the content loses highlighting (as mentioned above, closing and reopening the file seems to clear things up).

See screen recording:

Screenshot:

When adding the "=" after closing the tag:

Reproduces how often: [What percentage of the time does it reproduce?]
Everytime.

Versions

Atom : 1.34.0
Electron: 2.0.16
Chrome : 61.0.3163.100
Node : 8.9.3
MacOS Mojave 10.14.2 (18C54)

[rsese]

Thanks for the report, reproduce in 1.34.0 with macOS 10.12.6.

[SeaCDragon]

I can still reproduce this in Atom 1.39.0

[amingilani]

Still here in 1.40.1

[adlkhan]

I can reproduce in Atom 1.40.1, with Ubuntu 18.04.3 LTS
Downgraded atom to 1.33.1, only way to solve this problem atm.

[dcchambers]

Atom 1.40.1 / MacOS 10.14.6 still experiencing the same issue with ERB.

[dcchambers]

Tested today on Atom 1.41.1 and 1.42 this is no longer happening. Consider this resolved?

[SeaCDragon]

unfortunate no we cant. Even on 1.43 this still happens fairly often. I am on Mac