To test:
1 - Create a new basket in acq, mark it as 'standing'
2 - Add an item, leave the RRP and Vendor price as 0
3 - Receive shipments for the vendor
4 - Select the title from this basket
5 - On receipt enter an actual cost
6 - Finsih receiving
7 - Go to the basket
8 - Note the total for the order and the basket are 0, keep this browser tab open
9 - Open a new browser tab and create a new non standing basket
10 - Add to basket, again with no RRP or vendor price
11 - Close the basket, receive the item
12 - Enter an actual cost on receipt
13 - Return to view the basket
14 - Total and order are $0
15 - Apply patch
16 - Refresh the basket in both tabs
17 - You now see the actual price for the orders