fix cancelled items notaffecting fulfilledstock

src/main/java/com/nisum/ascend/inventory/service/ProductService.java

@@ -55,7 +55,7 @@ public class ProductService {
         return productRepository.findBySku(sku)
                 .flatMap(dbProduct -> {
                     dbProduct.setAvailableStock(dbProduct.getAvailableStock() - finalStock);
-                    dbProduct.setFulfilledStock(dbProduct.getFulfilledStock() + finalStock);
+                    dbProduct.setFulfilledStock(dbProduct.getFulfilledStock() + itemQuantity);
                     dbProduct.setBlockedStock(dbProduct.getBlockedStock() - itemQuantity);
                     return productRepository.save(dbProduct);
                 });