Link from patron loan to request queue searches by barcode with implicit truncation - can return multiple barcodes

Overview: There are a number of places where we offer links to requests on an item and they just link to the requests app with the item's barcode applied as a search. This is problematic at the moment because the Requests search uses implicit truncation and, therefore, you can get results for multiple items.

Steps to Reproduce:

1. Log into snapshot
2. Create a request for Item A
3. Go back to Inventory and create a new item (Item B) with the same barcode as Item A but add something to the end
4. Now create a request for Item B (use same patron as the requester)
5. Now check out item A to the requester
6. Now from the requester's loans page, click

Expected Results: When you click to view other requests on an item, you should only see the requests on that item

Actual Results: When you click to view other requests on a given item, you may also see requests on other items

Additional Information:

• There are a variety of ways we could solve this. Will need to speak with devs and SMEs. Some ideas:
  • Change keyword searching in requests to explicit truncation
  • Change the request queue filter to be on item ID instead of barcode
    • I think we actually do this for items without barcodes - maybe we could just extend that? Per grooming, this is what we will do
    • Would we have the same truncation problem with that approach?
• I will file separate bugs for fixes for the request queue links from User loans and Item details in Requests (UIREQ-484)