Player hitbox with minecarts

I don't really know if it's a bug, but when you go into a block in front of your head with a minecart using forward key, your head get into the block.

In high speed, I agree that you get into the block because it's logic, but when you go really slowly, you still enter into it.

What I expected to happen was...:
In slow speed, the block in front of me will stop me from going forward.

What actually happened was...:
The game pass over the player hitbox and only keep the minecart one.

Steps to Reproduce:
1. Put minecart trails on the floor (no activated powered rails)
2. Place a block just above a rail
3. Ride your minecart to the block using the forward key ("slow ride").
4. Enjoy

Oh and, sorry for my english, I'm french 🙂