Replace shipment_type by Shipment in sale grouping method
Since the introduction in 344956d44189 of the _get_shipment_sale method, it is the shipment class that is passed as argument and never the shipment type.
This instance will be upgraded to Heptapod 17.2.2 on 2024-09-12 at 17:00 UTC+2
Since the introduction in 344956d44189 of the _get_shipment_sale method, it is the shipment class that is passed as argument and never the shipment type.