Issue description
A market is still being constructed, but the belt to it is already finished, vegetables in this particular case. The farm was harvested via the belt, and the belt transported the vegetables to the market that had yet to be built. It was set to vegetables, and I already had one built, but the one it went to wasn't finished yet. Sorry I missed the screen capture right before they finished going in, I had just noticed it

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Expected behavior
Pretty self-explanatory
Game version
v0.4.7d
