'Releases panel' disappears permanently if placed into hidden fields column issue layout

Issue Summary

As per issue summary above, the releases Panel disappears permanently if placed into hidden fields column issue layout.

Steps to Reproduce

1. Integrate a dummy DVCS repository to your Cloud instance.
2. Create a JIRA Software project.
3. Now go to the issue layout screen. The 'Releases panel' should be there.
4. Move the 'Releases panel' into the hidden field column.
5. Save changes. Refresh the page.
6. The 'Releases panel' is now gone.

Expected Results

'Releases panel' stays in the hidden field. User can add the panel back to the issue layout anytime.

Actual Results

'Releases panel' field disappears permanently. You can no longer add it back to the issue layout so it will no longer show on the JIRA ticket.

Workaround

You will need to swap to another new issue type screen scheme. That will make the 'Releases panel' appear again. Should it be moved to the hidden field, however, it will disappear again.