Obsolete method “ExtractEntries” with two parameters always returns ArgumentNullException

Description

The obsolete method " ExtractEntries(IEnumerable<string> codes, Decimal quantity)" always returns an argument null exception because of following implementation in ExtractQuantity method.

if (sortMethod == null)
        throw new ArgumentNullException(nameof (sortMethod));

It should not throw an exception but fall back to the old behavior. It is mentioned that the method will be supported until October 2018, but it doesn't work.

Method obsolete warning says: “Use overload method with PromotionData parameter. It will remain at least until October 2018.”

• Method name: ExtractEntries (https://world.episerver.com/documentation/Class-library/?documentId=commerce/11/BBF320AE)
• Class name: OrderFormPriceMatrix
• Namespace: EPiServer.Commerce.Marketing