MC-5906: The order of product SKU is not respected

- Fix test failures

Author: Nikita Chubukov

app/code/Magento/Rule/Model/Condition/Sql/Builder.php

@@ -251,19 +251,25 @@ public function attachConditionToCollection(
         $whereExpression = (string)$this->_getMappedSqlCombination($combine);
         if (!empty($whereExpression)) {
             if (!empty($combine->getConditions())) {
+                $conditions = '';
+                $attribute = '';
                 foreach ($combine->getConditions() as $condition) {
-                    $conditions = $condition->getData()['value'];
-                    $attribute = $condition->getData()['attribute'];
+                    if ($condition->getData('attribute') === \Magento\Catalog\Api\Data\ProductInterface::SKU) {
+                        $conditions = $condition->getData('value');
+                        $attribute = $condition->getData('attribute');
+                    }
                 }
-                if (!empty($conditions)) {
+
+                $collection->getSelect()->where($whereExpression);
+
+                if (!empty($conditions) && !empty($attribute)) {
                     $conditions = explode(',', $conditions);
                     foreach ($conditions as &$condition) {
                         $condition = "'" . trim($condition) . "'";
                     }
                     $conditions = implode(', ', $conditions);
+                    $collection->getSelect()->order("FIELD($attribute, $conditions)");
                 }
-
-                $collection->getSelect()->where($whereExpression)->order("FIELD($attribute, $conditions)");
             } else {
                 // Select ::where method adds braces even on empty expression
                 $collection->getSelect()->where($whereExpression);