only in patch2:
unchanged:
--- a/core/lib/Drupal/Core/Database/StatementPrefetch.php
+++ b/core/lib/Drupal/Core/Database/StatementPrefetch.php
@@ -418,7 +418,7 @@ public function fetchField($index = 0) {
   /**
    * {@inheritdoc}
    */
-  public function fetchObject($class_name = NULL, $constructor_args = []) {
+  public function fetchObject($class_name = NULL, $constructor_arguments = NULL) {
     if (isset($this->currentRow)) {
       if (!isset($class_name)) {
         // Directly cast to an object to avoid a function call.
@@ -428,7 +428,7 @@ public function fetchObject($class_name = NULL, $constructor_args = []) {
         $this->fetchStyle = \PDO::FETCH_CLASS;
         $this->fetchOptions = [
           'class' => $class_name,
-          'constructor_args' => $constructor_args,
+          'constructor_args' => $constructor_arguments,
         ];
         // Grab the row in the format specified above.
         $result = $this->current();