MC-80878Entities with Motion picked up by Minecart cause Minecart to stop
This relates to:
It seems like mobs in Minecarts aren't able to control them (except chicken jockeys). This is different to boats and seems to cause some problems.
When a minecart picks up for example a entity which is moving (like a Zombie), it will some kind of take the Motion value causing it to stuck for example at powered rails next to a block.
