Minecart unveils new Bug He spends the ground

Good, this bug was discovered by me Floodeer, was seeing in the new snapshot version site, when I see standing in the Minecart Bug, but it was solved, but now the cart passes the floor is a bit difficult to explain, so I have an image that best demonstrates the cituação.
O Bug se repete no Gamemode 0,1,2 ( não possível testar no 3 )