To recreate: 1 - Place a hold for a patron 2 - Checkin the item/confirm the hold to set it to waiting 3 - Enable ILSDI 4 - Cancel the hold via ILSDI item_id means the reserve_id http://localhost:8080/cgi-bin/koha/ilsdi.pl?service=CancelHold&patron_id=5&item_id=193 5 - Successfully canceled