Bug 36686

In testing my patch for Bug 25682 I'm finding several problems with item transfers. In short, the handling of items with holds is completely broken:

- Logged in to Branch A.
- Find a barcode for a title which has a biblio-level
  hold (not already in transit) to be sent to Branch B.

  - Submit transfer to Branch C.
    - Three actions are offered:
      1. Transfer to Branch B
      2. Cancel hold and then attempt transfer
      3. Ignore and return to transfers

      Testing each of the three actions:
          1. The page says "Item is now in transit
             to Branch C (not the hold's destination)"
          2. The item is not in transit, and the hold
             has been changed to an item-level hold.
          3. Works correctly. No change to the hold
             and no transfer initiated.

- Logged in to Branch A.
- Find a barcode for a title which has a biblio-level
  hold (not already in transit) to be sent to Branch B.
  - Check in the item, confirm hold and transfer.

  - Submit transfer to Branch C.
    - Two actions are offered:
      1. Cancel hold and then attempt transfer
      2. Ignore and return to transfers

      Testing each of the two actions:
          1. The page says "Reserve cancelled" (sic).
             The original transfer to Branch B is still
             in place.
          2. Works correctly. No change to the hold and
             the original transfer remains.

- Logged in to Branch D.
- Find a barcode for a title which has a biblio-level
  hold (not already in transit) to be held at Branch D.
  - Check in the item, confirm hold.

- Log in to Branch A.
  - Submit a transfer with that barcode to Branch C.
    - Two actions are offered:
      1. Cancel hold and then attempt transfer
      2. Ignore and return to transfer.

      Testing each of the two actions:
          1. The page says "Reserve cancelled" (sic).
             The hold has been cancelled but the item
             has not been transferred.
          2. Works correctly. Hold remains unchanged,
             no transfer initiated.