Admin: get_admin_page_parent call before parent_file filter. Fixes #61503.

Author: vishal-xecurify

src/wp-admin/menu-header.php

@@ -31,6 +31,8 @@
  */
 global $menu, $submenu, $parent_file, $submenu_file;
 
+get_admin_page_parent();
+
 /**
  * Filters the parent file of an admin menu sub-menu item.
  *
@@ -52,8 +54,6 @@
  */
 $submenu_file = apply_filters( 'submenu_file', $submenu_file, $parent_file );
 
-get_admin_page_parent();
-
 /**
  * Display menu.
  *