I am using the Merchello 2.2.1 and having an issues with getting a product collection from a detached content type.

I created a doctype with a product collection picker which is set as the extended content type of a product. I am then trying to pull a list of the products from that collection inside a merchello surface controller.

The value returned from the ProductCollectionPicker should be, I think, the collection key and that should be a GUID.

The problem is that it is 33 characters instead of 32 and I cannot use it to get a list of products. What am I missing?

Error: Guid should contain 32 digits with 4 dashes (xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx).

MemberProduct is an IProduct

        var extendedContent = MemberProduct.DetachedContents.FirstOrDefault();
        var certCollectionProperty = extendedContent
                .DetachedDataValues
                .FirstOrDefault(c => c.Key.ToLowerInvariant().Equals("certifications"));

        var certCollectionKey = Guid.Parse(certCollectionProperty.Value);

        var certList = MerchelloServices
            .ProductService
            .GetFromCollection(certCollectionKey, 1, int.MaxValue, "Sku", SortDirection.Ascending)
            .Items
            .ToSelectList(p => $"{p.Price.ToString("C")} - {p.Name}", p => p.Sku, SelectListPrompt);

Please ignore the need to refactor FYI - This is not the final code just figuring things out.