Ticket #21213: template_php.patch

wp-includes/template.php

@@ -21 +21 @@
  * @return string Full path to file.
  */
 function get_query_template( $type, $templates = array() ) {
-        $type = preg_replace( '|[^a-z0-9-]+|', '', $type );
+        $type = preg_replace( '|[^a-z0-9-_]+|', '', $type );
 
         if ( empty( $templates ) )
                 $templates = array("{$type}.php");