A result! I fiddled around with this for ages and finally decided that Ionian-Phrygian with the appropriate key shift was the only logical way of doing what the OP (and me on several occasions) was trying to do - shift a melody up a third on scale. The only trouble was that it results in a duplicated note so that C-D-E-F-G-A-B-C ends up as E-F-G-A-B-D-D-E (the OP uses an example in D to F#).
I contacted Support and have now received this answer:
This is a bug and thanks to you it is now in the bug tracking system. Thank you very much. Unfortunately there will be no response by the departments that process this.
I notice it’s not in the BugBase yet but don’t know whether this is supposed to be a definitive list or not.
Anyway, there’s your answer: it’s a bug and the way described here is as close as you’re gonna get.