Copying link in description or comment fields fails in new Jira issue view

Summary

If you copy a link that ends with a slash ( / ) or has an exclamation mark( ! ) and paste it in the description or comment field, it fails with the following error:

We couldn't save your comment
It might be empty, too long, or have invalid
formatting. If you copy-pasted, try removing the
formatting and adding it directly in the editor.

Steps to Reproduce

1. Type the following link as comment and save it:

   https://test.com/

   https://xyz123.atlassian.net/secure/admin/LookAndFeel!default.jspa

2. Copy the link from the comment
3. Past the link into another comment (or in the description field) and click Save

Expected Results

Comment/description saves

Actual Results

Following error appears in UI and browser's console:

Workaround

Click on the link and select Unlink before saving it, see screenshot below: