Zorua illusion and HC

So I was trying out the partner egg thing in HC to get a Zorua. The one helping me had a Zorua but his illusion was a Yanma. When we got to the floors with the partner eggs, I picked some up, only a few as we had some bad luck. The first egg I got was Yanma instead of Zorua. So is there a way to reverse this so I could swap the Yanma back to Zorua?

He may have entered the floor using Yanma.