add default_shipment_address

sale.py

@@ -98,6 +98,12 @@ class SaleLine(metaclass=PoolMeta):
         'on_change_with_unit_digits')
 
     
+    @fields.depends('sale','_parent_sale.shipment_address')
+    def default_address_equipment(self, name=None):
+        #raise UserError(str((self.sale)))
+        self.address_equipment = self.sale.shipment_address.id
+        return self.address_equipment
+    
     def on_change_with_unit_digits(self, name=None):
         if self.unit:
             return self.unit.digits