Bug 12565: Acq: Fix broken link in breadcrumbs

Bug 12565: Acq: Fix broken link in breadcrumbs

The link back to the basket when creating an order by
searching for an existing record in the catalog is
broken.

To test:
- Start a new basket
- Create a new order line by searching for an existing
  record in your catalog
- Try the link back to the basket from the breadcrumbs
  at the result list page
- Verify that the link is broken
- Apply patch and retest

Signed-off-by: Paola Rossi <paola.rossi@cineca.it>
Signed-off-by: Jonathan Druart <jonathan.druart@biblibre.com>
Signed-off-by: Tomas Cohen Arazi <tomascohen@gmail.com>