Passengers get off mobs if they convert into other mobs

The bug

Passengers get off mobs if they convert into other mobs. The opposite also happens.

How to reproduce

Enter a command in overworld:

/summon ravager ~ ~1 ~ {Passengers:[{id:piglin_brute}]}

You will notice that in the end, piglin brute will get off the ravager when it turns into a zombified version.

Or enter this command in overworld:

/summon hoglin ~ ~1 ~ {Passengers:[{id:villager}]}

Then the hoglin turned into a zoglin will expel villager from the passenger seat.