[QW][3681868]po ref

#Done by RHT and QCO on the 29/02/2024
#Reviewed by ROS on the 14/03/2024
#Review:https://pastebin.com/edit/NwVkW9Fw
#911 Task: https://www.odoo.com/web#id=3681868&cids=1&model=project.task&view_type=form
#Need: Have the PO information on the delivery (for SO/PO linked trough MTO)
for move in self:
  if move.picking_id.picking_type_code == 'outgoing':
    po_list = move.picking_id.group_id.x_studio_purchase_orders.filtered(lambda po,mv=move: mv.product_id in po.order_line.product_id)
    move['x_studio_po_ref'] = ', '.join(po_list.mapped("name"))
  else:
    move['x_studio_po_ref'] = "/"