Listening for content removal

When a user clicks your quick-add button, the ISSUE_QUICK_ADD_CLICKED event is sent. You can listen for this event using the JavaScript API.

That’s fine. What about when the issue content panel is removed (hidden) by the user? How would our app know that its content has been removed from the issue?

So what I think we need is a ISSUE_CONTENT_REMOVED or ISSUE_CONTENT_HIDDEN event.