diff --git a/core/lib/Drupal/Core/Template/TwigExtension.php b/core/lib/Drupal/Core/Template/TwigExtension.php
index ed9ed3d..e9eca7a 100644
--- a/core/lib/Drupal/Core/Template/TwigExtension.php
+++ b/core/lib/Drupal/Core/Template/TwigExtension.php
@@ -54,11 +54,11 @@ class TwigExtension extends \Twig_Extension {
   protected $dateFormatter;
 
   /**
-   * An empty attributes object that can be cloned.
+   * An empty Attribute object that can be cloned.
    *
    * @var \Drupal\Core\Template\Attribute
    */
-  protected $attributes;
+  protected $attribute;
 
   /**
    * Constructs \Drupal\Core\Template\TwigExtension.
@@ -618,15 +618,16 @@ public function safeJoin(\Twig_Environment $env, $value, $glue = '') {
    *   An attributes object that has the given attributes.
    */
   public function createAttribute(array $attributes = []) {
-    if (empty($attributes)) {
-      if (!$this->attributes) {
-        $this->attributes = new Attribute();
-      }
+    if (!isset($this->attribute)) {
+      $this->attribute = new Attribute();
+    }
+    $cloned_attributes = clone $this->attribute;
 
-      return clone $this->attributes;
+    foreach ($attributes as $name => $value) {
+      $cloned_attributes->offsetSet($name, $value);
     }
 
-    return new Attribute($attributes);
+    return $cloned_attributes;
   }
 
 }