magento#14020-Cart-Sales-Rule-with-negated-condition-over-special-price-does-not-work-for-configurable-products.

Revert "Removed dependency to configurable product"

This reverts commit d2a0de8.

Author: novikor

app/code/Magento/SalesRule/Model/Rule/Condition/Product.php

@@ -5,6 +5,8 @@
  */
 namespace Magento\SalesRule\Model\Rule\Condition;
 
+use Magento\ConfigurableProduct\Model\Product\Type\Configurable;
+
 /**
  * Product rule condition data model
  *
@@ -45,7 +47,7 @@ protected function getProductToValidate(\Magento\Framework\Model\AbstractModel $
         $attrCode = $this->getAttribute();
 
         /* Check for attributes which are not available for configurable products */
-        if ($product->isComposite() && !$product->hasData($attrCode)) {
+        if ($product->getTypeId() == Configurable::TYPE_CODE && !$product->hasData($attrCode)) {
             /** @var \Magento\Catalog\Api\Data\ProductInterface $childProduct */
             $childProduct = current($model->getChildren())->getProduct();
             if ($childProduct->hasData($attrCode)) {