The purpose of this post is twofold.

First, it's a shameless bump (this issue is the only thing standing in my way of deploying an new web project that would primarily sell "one-of" items).

Second, and most importantly, I am looking for guidance on how hook_order is supposed to work with modules like uc_inventory_api.module.

Specifically, I assume function uc_inventory_api_order (line 246 of uc_inventory_api.module) is supposed to get called when function uc_cart_checkout_review_form_submit (line 1345 of uc_cart.module) is executed.

However, my testing leads me to believe that function uc_inventory_api_order is never actually getting called.

How is function uc_inventory_api_order supposed to get called by uc_cart.module?