Remover constraint is buggy

I’m a new user to gmod but I believe I have come across a very annoying problem with the Remover tool. I had spawned a couple instances of the same character model while trying to do some poses, and settled on 1 of the 2. I left 1 lying on the ground while I spent about 45mins getting the positioning right on the other.

Once I was done and ready for the camera tool, I noticed that the other model would have been in the shot. I went over to it, switched to the Remover, and deleted it. I turned around, and my POSED MODEL was gone too! Now, it’s my fault for not saving the session, but why would the Remover tool delete both of the models, when I made sure that I clicked on just the bad one (not to mention, the posed model was completely behind me!)