enemyBusiness business pays instantly when neighboring spots change

[asteriskman7]

Steps to reproduce:

1. Move a spot next to an enemyBusiness.
2. Start a business running that takes at least 10 or 20 seconds (so that it doesn't finish before you complete the next steps)
3. Move the spot away from the enemyBusiness
4. Move the spot back to the enemyBusiness

The previously running business will instantly complete.

Expected behavior:
Previous progress should be saved and the business should continue from where it left off.