Move an app out of Organisation

I just stumbled upon a workaround to this.
I had a free app in an Organisation folder and I wanted to get it back into my personal folder so that I could delete the organisation and retain the app. This is how I managed to do it:

  1. Made the app in question copyable
  2. Opened the link and made a copy - this copy went into my personal folder.
  3. Deleted the original app from the organisation folder.
  4. Deleted the organisation.

Organisation gone, and app back in my personal folder.