Maybe? The '15 Versa uses 80430-9KK0A, which sure does look the same as the R50 door catch. For some reason, the R50 has a whole bunch of different part numbers (80430-0W000, 80430-0W005, 80430-0W006, 80430-0W007, 80430-0W008, 80430-0W009, 80430-1W300, 80430-1W310, 80430-1W311, 80430-5W900), but it looks like they're all just different revisions of the same part. The first half of the part number is the same as the Versa one, and they sure do look about the same, so maybe the Versa catch is just the latest revision of the same part.
If you can get the Versa one cheaper, or already have one on hand (that your girlfriend won't miss), it might be worth a shot. Measure the length of the rod before you swap in the Versa one in case they made it longer, and open the door slowly the first time until you're sure it won't hit the fender.