Bug 13744: Fix datatables paging on 'order from subscription' page

Bug 13744: Fix datatables paging on 'order from subscription' page

The paging of the datatable on the 'order from subscription' page
is broken without this patch.

To test:
- Make sure you have a subscription, note the vendor
- Create a new basket for this vendor
- Add a new order line 'from a subscription'
- Check paging on the result table displays correctly

Signed-off-by: Nicole <nicole@bywatersolutions.com>
Signed-off-by: Jonathan Druart <jonathan.druart@biblibre.com>
Signed-off-by: Tomas Cohen Arazi <tomascohen@gmail.com>
(cherry picked from commit d9d0ea3904d4aa3b7498a3c0f4516bd497b59f8b)
Signed-off-by: Chris Cormack <chrisc@catalyst.net.nz>