It looks as if the aircraft they are using for this flight since going from the A330-300 to the A330-200 have all been reconfigured ones. If you look online at a flight radar site it will tell you the tail that flew that day and the past few days. For instance today the ATL-IST was flown by TC-JNE which appears to have gone from the 22 seat angled to the 18 seat flat sometime in June of 2017.