Updates a material order's fields or items. Send only the fields you want to change, inside a material_order object; the accepted fields are the same as when creating one, plus actual_delivery_date.

• To change an item, include its id in material_order_items_attributes. To remove one, include its id with _destroy: true. Items without an id are added. total_cost is recalculated on every save.
• Changing supplier_branch_id re-prices catalog items using that branch's costs and item codes. An unknown branch ID returns 404.
• Setting status to delivered can tick off a matching item on the job's stage checklist.
• Validation failures return 422 with an errors list.
• The token's role must be able to view all company records, or the token's user must have placed the order. The token needs the write scope.