Minecart hitboxes interfere when running on touching rails

The bug

Minecarts that run next to each other will occasionally push each other, especially on corners. This means that farms with hopper minecart collection systems can be broken when the minecarts stop each other when they pass each other on a corner, or sometimes on a straight section of track.

How to reproduce

1. Make a square out of rails, then another square on the inside of that so that both sets of rails are touching each other around the whole square. Put plenty of booster rails along the tracks to keep the minecarts running.
2. Run minecarts along both rails in opposite directions.
3. Just wait for the minecarts to stop when they pass each other.