product sku property name on sku variant values

src/Model/Entity/ProductSkuVariantValue.php

@@ -34,7 +34,7 @@ class ProductSkuVariantValue extends Entity
         'product_category_variant_option_id' => true,
 
         // entities
-        'product_skus' => true,
+        'product_sku' => true,
         'product_variant' => true,
         'product_category_variant_option' => true,
     ];