IT gh#1056

#1056 Purchase Order from Sales Order process, wrong InvoiceBPartner

Testcase to check invoice BPartner in purchase order

1. Setup:
   • have bpartner G000X customer and vendor, with no invoice address
   • have bpartner G000Y customer and vendor, with at least one invoice address
   • have bpartner G000Z customer, with invoice address
   • have product P0001 with bpartner G000X as current vendor and used for vendor, and another one used for vendor only

2. go to BP Relation window and create a new one for G000X no address and G000Y as proxy, with the address that is used for invoice. Set isBillTo on Y

3. go to purchase order and create a new one, set bpartner G000X
   • => bill bpartner is G000Y
4. go to purchase order and create a new one, set bpartner G000Y
   • => bill bpartner is G000Y
5. go to sales order and create a new one, bpartner G000Z
   • => bill bpartner is G000Z

6. add product P0001 and complete

7. gear, select Purchase Order from Sales Order process, start
   • => new purchase order was created
   • => bpartner G000X and bill bpartner G000Y
8. create a new sales order, bpartner G000X, product P0001
   • => bill bpartner is G000Y
9. Make Purchase order from sales order
   • => new purchase order was created
   • => bpartner G000X and bill bpartner G000Y
10. create a new sales order, bpartner G000Y, product P0001
    • => bill bpartner is G000Y
11. Make Purchase order from sales order
    • => new purchase order was created
    • => bpartner G000X and bill bpartner G000Y

12. Go to bpartner G000X and add an invoice address

13. create a sales order with G000X, product P0001
    • => bill bpartner is G000X
14. make Purchase order from Sales order
    • => new purchase order was created
    • => bpartner G000X and bill bpartner G000X