Fix: Only override tmp store key

src/Plugin/SectionStorage/UserDashboardSectionStorage.php

@@ -12,6 +12,7 @@ use Symfony\Component\Routing\RouteCollection;
 use Drupal\Core\Plugin\Context\ContextDefinition;
 use Drupal\Core\Entity\EntityTypeManagerInterface;
 use Drupal\Core\Entity\EntityTypeBundleInfoInterface;
+use Drupal\layout_builder\TempStoreIdentifierInterface;
 use Drupal\Core\Cache\RefinableCacheableDependencyInterface;
 use Symfony\Component\DependencyInjection\ContainerInterface;
 use Drupal\layout_builder\Entity\SampleEntityGeneratorInterface;
@@ -30,7 +31,7 @@ use Drupal\layout_builder\Entity\SampleEntityGeneratorInterface;
  *
  * @package Drupal\dashboards\Plugin\SectionStorage
  */
-class UserDashboardSectionStorage extends DashboardSectionStorage {
+class UserDashboardSectionStorage extends DashboardSectionStorage implements TempStoreIdentifierInterface {
 
   /**
    * UserDataInterface definition.
@@ -101,7 +102,6 @@ class UserDashboardSectionStorage extends DashboardSectionStorage {
     $contexts = [];
 
     $id = !empty($value) ? $value : (!empty($defaults['dashboard']) ? $defaults['dashboard'] : NULL);
-    $id = explode('-', $id)[0];
     /**
      * @var \Drupal\dashboards\Entity\Dashboard $entity
      */
@@ -150,8 +150,8 @@ class UserDashboardSectionStorage extends DashboardSectionStorage {
   /**
    * {@inheritdoc}
    */
-  public function getStorageId() {
-    return $this->getDashboard()->id() . '-' . $this->account->id();
+  public function getTempstoreKey() {
+    return $this->account->id();
   }
 
 }