entity presave fix

src/Hook/EntityPresave.php

@@ -51,7 +51,9 @@ class EntityPresave extends ControllerBase {
   public static function checkNode($entity) {
     $result = FALSE;
     if (method_exists($entity, 'getType')) {
-      $result = $entity->getType();
+      if (property_exists($entity, 'title')) {
+        $result = $entity->getType();
+      }
     }
     return $result;
   }