diff --git a/core/modules/media_library/src/MediaLibraryState.php b/core/modules/media_library/src/MediaLibraryState.php
index df075640a9..e2059e86cf 100644
--- a/core/modules/media_library/src/MediaLibraryState.php
+++ b/core/modules/media_library/src/MediaLibraryState.php
@@ -34,6 +34,14 @@
  */
 class MediaLibraryState extends ParameterBag {
 
+  /**
+   * {@inheritdoc}
+   */
+  public function __construct(array $parameters = []) {
+    parent::__construct($parameters);
+    static::validateParameters($this->get('media_library_opener_id'), $this->get('media_library_allowed_types'), $this->get('media_library_selected_type'), $this->get('media_library_remaining'));
+  }
+
   /**
    * Creates a new MediaLibraryState object.
    *
@@ -51,7 +59,6 @@ class MediaLibraryState extends ParameterBag {
    *   A state object.
    */
   public static function create($opener_id, array $allowed_media_type_ids, $selected_type_id, $remaining_slots) {
-    static::validateParameters($opener_id, $allowed_media_type_ids, $selected_type_id, $remaining_slots);
     return new static([
       'media_library_opener_id' => $opener_id,
       'media_library_allowed_types' => $allowed_media_type_ids,
diff --git a/core/modules/media_library/src/Plugin/Field/FieldWidget/MediaLibraryWidget.php b/core/modules/media_library/src/Plugin/Field/FieldWidget/MediaLibraryWidget.php
index befbbbb017..1c62655429 100644
--- a/core/modules/media_library/src/Plugin/Field/FieldWidget/MediaLibraryWidget.php
+++ b/core/modules/media_library/src/Plugin/Field/FieldWidget/MediaLibraryWidget.php
@@ -667,6 +667,8 @@ protected static function setFieldState(array $element, FormStateInterface $form
    *
    * @return string|null
    *   The field ID or NULL if the opener ID is not valid for the widget.
+   *
+   * @see \Drupal\media_library\MediaLibraryState
    */
   public static function getOpenerFieldId($opener_id) {
     // Media library widget opener IDs are always prefixed with 'field:' in .