Revert change to WooShippingItemsDataSource's product

Author: itsmeichigo

WooCommerce/Classes/ViewRelated/Orders/Order Details/Shipping Labels/WooShipping Create Shipping Labels/WooShipping Items Section/WooShippingItemsDataSource.swift

@@ -30,7 +30,10 @@ final class DefaultWooShippingItemsDataSource: WooShippingItemsDataSource {
 
     /// Stored products that match the items in the order.
     ///
-    private var products: [ProductListItem] = []
+    private var products: [ProductListItem] {
+        try? productResultsController.performFetch()
+        return productResultsController.listItemObjects
+    }
 
     /// Stored product variations that match the items in the order.
     ///
@@ -76,7 +79,6 @@ final class DefaultWooShippingItemsDataSource: WooShippingItemsDataSource {
     private func configureProductResultsController() {
         do {
             try productResultsController.performFetch()
-            products = productResultsController.listItemObjects
         } catch {
             DDLogError("⛔️ Error fetching products for Woo Shipping label creation: \(error)")
         }