Ticket #19655: basename-patch.diff

wp-admin/includes/theme.php

@@ -181 +181 @@
         $page_templates = array();
 
         if ( is_array( $templates ) ) {
-                $base = array( trailingslashit(get_template_directory()), trailingslashit(get_stylesheet_directory()) );
 
                 foreach ( $templates as $template ) {
-                        $basename = str_replace($base, '', $template);
+                        $basename = basename($template);
 
                         // don't allow template files in subdirectories
                         if ( false !== strpos($basename, '/') )