Pull request cannot be displayed when the description contains a URL link with an '@' in it

Issue Summary

When creating a PR, if you add a link to the description field containing '@' the Pull Request cannot be displayed upon creation.

Steps to Reproduce

1. Create a PR and add a link in the description that contains an '@' symbol. e.g.: http://example.com/contentpath/content/repositories/npm-repo/@cnnr/appname
2. Try to display the PR

Expected Results

The PR displays with the URL link in it.

Actual Results

The PR cannot be displayed and an icon as below is shown

Workaround

No workaround available