/**
  * Get matching products to validate product
  *
  * @param GroupInterface   $variantGroup the variant group
  * @param ProductInterface $entity       the product
  * @param array            $criteria     query criterias
  *
  * @return ProductInterface[]
  */
 protected function getMatchingProductsForProduct(GroupInterface $variantGroup, ProductInterface $entity, array $criteria = [])
 {
     if (!$variantGroup->getId()) {
         return [];
     }
     $matchingProducts = $this->repository->findProductIdsForVariantGroup($variantGroup, $criteria);
     $matchingProducts = array_filter($matchingProducts, function ($product) use($entity) {
         return $product['id'] !== $entity->getId();
     });
     return $matchingProducts;
 }