Factory Error: Purple Pants (Exclusive) Fei Long in a Black Pants (Retail) box value
 

So, I've heard of factory errors before, but never actually seen one in the wild before.

The other day I was at a Walmart, and found an Jada Toys Street Fighter Exclusive purple pants Player 2 variant of Fei Long in a Mass Retail Release black pants Player 1 box. I double checked the tape, just in case this was some kind of odd joke or effort on someone's part.

Is this anything special, or a somewhat common error in the action figure community? And any idea of the value of such an odd thing.

Thanks for your thoughts.