Minecarts don't bounce off redstone blocks when on powered rail

The Bug

The minecart rides down a powered rail and stops at the redstone block instead bouncing off and getting sent in the other direction. Also applies to minecarts that are standing still on the powered rail.

How to reproduce

1. Place a line of three rails
2. Place a powered rail on both ends
3. Place a redstone block behind one end (right side in screenshot)
4. On the other end (left side in screenshot), place a redstone block on the side and a different solid block on the end
5. Now place a minecart on the left powered rail
   → Notice the minecart starts to ride to the other side
   → also notice that it stops against the redstone block
6. Remove the cart and place another on the right powered rail
   → Notice the minecart stands still