Monster Life reactions

I think I just found a bug in Monster Life. I was lagging pretty badly, and when I tried setting a building down it didn't leave my inventory for a few seconds. Out of curiosity I tried setting the building in another location while the first one was still being made, and I ended up setting the same building in two separate locations.

Edit: Looks like it's not really an exploit though. The second building vanished after I left my farm and came back, which was kind of what I was expecting honestly.