Revert "Fix indexer alias generation"

This reverts commit c8e4d9d.

Author: laoneo

administrator/components/com_finder/src/Table/MapTable.php

@@ -70,8 +70,7 @@ public function check()
         $this->alias = ApplicationHelper::stringURLSafe($this->title, $this->language);
 
         if (trim($this->alias) == '') {
-            // Do not serialize objects
-            $this->alias = md5(serialize(array_filter($this->getProperties(), fn ($prop) => !is_object($prop))));
+            $this->alias = md5(serialize($this->getProperties()));
         }
 
         return true;