Allow deletion of Product IDs from the POL without removing the link to the Instance

Purpose: To allow a user to remove extra product IDs that were imported from an Inventory Instance, without losing the connection to the Instance

As a staff person creating an order
I want to be able to remove some of the product identifiers that were imported from the Inventory Instance without losing the link to the Instance
So that I can remove extraneous product IDs before finalizing the order.

Scenarios

1. Scenario 1
   • Given the POL Create/Edit screen
   • When the user imports item data from Inventory (by pressing the + button next to the Title field and selecting an Instance)
   • And deletes any/all Product IDs by pressing the trashcan icon next to the product ID
   • Then do NOT remove the Instance UUID from the POL; do not break the link between the Instance and the POL
   • And allow holdings/items to be added to the linked Instance, based on the POL's Create inventory setting
2. Scenario 2
   • Given the POL Create/Edit screen
   • When the user imports item data from Inventory (by pressing the + button next to the Title field and selecting an Instance)
   • And manually adds any Product ID to the POL
   • Then remove the Instance UUID from the POL and break the link between the Instance and the POL
3. Scenario 3
   • Ensure automated testing coverage for this new code is 80% plus and confirm with screenshot