the panda and its child is pure white

What I expected to happen was...:
I was looking around a Buffet world, it was a bamboo floating island world, and I come across two pandas. One of them is a normal sick panda, while the other is pure white.

What actually happened was...:
I chalked it up to be a rarity and went to punch the panda to fix it, nothing. It remained white but still took damage. I fed it, it still was white, the animations were perfect as well. I then decided to breed the panda and let's say that the child is

I have no idea how to get this bug but I do now know how to make clones of these things.