Zombified Piglin Babies on chickens within Minecarts can change directions

A Zombified Piglin Baby that rides on a chicken can be picked up with a Minecart but it seems like the chicken can change the driving direction on powered rails depending on where it is pointing to. Also it can change directions when it is off the rails. 

See here:

https://youtu.be/3LXfbqaovdg

 

Thanks!