Minecart with villager not stopping on unpowered rails

On our realm server, when transporting villagers via minecart the minecart will not stop on unpowered rails. The villager is somehow forcing the cart to continue. If set on an ascending slop of unpowered rails, the minecart and villager will bounce backwards at the top unpowered rail heading in the wrong direction. An empty minecart functions as intended in these scenarios.