Minecart can't be pushed from soil or path over to a full block

The bug

Minecarts can't be pushed onto a full block (grass, stone, etc.) when the block the minecart is on is soul sand, farmland, dirt path, or any other blocks slightly smaller than the block it is being pushed onto.

How to reproduce

1. Recreate the setup shown in setup.png
2. Summon a minecart on the dirt paths:

   /summon minecart

3. Attempt to push the minecart off the paths
   You are unable to push the minecart onto the diamond blocks

Expected behavior

The minecart would be able to be pushed from the dirt path to the diamond block.