The code that generate the return lines is moved inside
an onchange. The purpose is to allow an inherit that will
modify the picking_id of the wizard. It should trigger the
new return lines without a call to default_get.
task_id 1909413
This commit generalize the method made for computing the quantity delivered in a sale order
in order to be used for the quantity received for a kit in a purchase order.
TaskID: 1929518
Arnold Moyaux