diff --git a/core/lib/Drupal/Component/Plugin/PluginBag.php b/core/lib/Drupal/Component/Plugin/PluginBag.php
index 18b09d0..656c8ce 100644
--- a/core/lib/Drupal/Component/Plugin/PluginBag.php
+++ b/core/lib/Drupal/Component/Plugin/PluginBag.php
@@ -35,6 +35,13 @@
   abstract protected function initializePlugin($instance_id);
 
   /**
+   * Clears all instantiated plugins.
+   */
+  public function clear() {
+    $this->pluginInstances = array();
+  }
+
+  /**
    * Implements \ArrayAccess::offsetExists().
    */
   public function offsetExists($offset) {
diff --git a/core/modules/views/lib/Drupal/views/DisplayArray.php b/core/modules/views/lib/Drupal/views/DisplayArray.php
index eb5b23b..ad6daec 100644
--- a/core/modules/views/lib/Drupal/views/DisplayArray.php
+++ b/core/modules/views/lib/Drupal/views/DisplayArray.php
@@ -41,10 +41,18 @@ public function __construct(ViewExecutable $view) {
    * Destructs a DisplayArray object.
    */
   public function __destruct() {
+    $this->clear();
+  }
+
+  /**
+   * Overrides \Drupal\Component\Plugin\PluginBag::clear().
+   */
+  public function clear() {
     foreach ($this->pluginInstances as $display_id => $display) {
       $display->destroy();
-      unset($this->pluginInstances[$display_id]);
     }
+
+    parent::clear();
   }
 
   /**