[GAMEPLAY] Selling 1 Biscuit actually sells 2

Steps: 1.) Have biscuit delivery 2.) Accumulate 2 or more biscuits. 3.) Go to shop and click the biscuit and click sell button.

Expected: One less biscuit.

Actual: Two less biscuits.

It's odd because you can click undo and get back all of the sold biscuits, but you cannot sell just one biscuit.

Video: https://youtu.be/vSEamlrdtVI