To reproduce:

1. Locate or create a bib with multiple items
2. Set one item to type "Reference" and the rest to type "Book"
3. Go to the Circulation and Fines Rules > "Default holds policy by item type"
   section, and add a line specifying No Holds Allowed for Reference item type
4. Attempt to place an item-level hold on the Reference-type item via the REST API,
   specifying only the parameters:
   patron_id, item_id, and pickup_library_id
5. Confirm expected error message: Hold cannot be placed. Reason: notReservable
6. Attempt to place an item-level hold on the Reference-type item via the REST API,
   specifying only the parameters:
   patron_id, item_id, biblio_id, and pickup_library_id
7. Observe that an item-level hold has been placed on the Reference-type item, even
   though it should not be holdable