Minecart from mineshaft has a name

Put the summary of the bug you're having here

This only happens with the minecarts from the mineshaft that are auto generated in a chest.

What I expected to happen was...:
Expected to have no name when the minecart is generated in the chest

What actually happened was...:
The minecart has a name: 'container.minecart'

Steps to Reproduce:
1. Search for a mineshaft
2. Look for a chest
3. Get a minecart from a mineshaft