You can tell which roles are cloned, and which role they were cloned from.
  1. In Core > Security > Roles >
  2. Hover over the small i next to the role, this will tell you that the role has been cloned
  3. If there is not an original role and the role has a small i next to it, then the role name has likely been changed, not cloned. 
  4. In this example, 2016 was added to Platform Manager, which populated the i.
​​​User-added image