Minecarts don't try southern blocks when you exit.

When exiting a minecart, the player will be on the same block as the minecart instead of a block to the south of the minecart.

To reproduce:

Place a rail and a minecart upon it. Place blocks (any that will prevent the player from exiting the minecart where it is place) in the adjacent west, north-west, north, north-east and east air blocks around the minecart and track. Enter the minecart and exit.

Expected results: Player is ejected into one of the empty southern blocks.

Actual results: Player is ejected into the same space as the minecart.