Ticket #13638: 13638.3.diff

wp-includes/classes.php

@@ -145 +145 @@
                 // Fetch the rewrite rules.
                 $rewrite = $wp_rewrite->wp_rewrite_rules();
 
-                if ( ! empty($rewrite) ) {
+                if ( ! empty($rewrite) && defined( 'WP_USE_THEMES' ) && WP_USE_THEMES ) {
                         // If we match a rewrite rule, this will be cleared.
                         $error = '404';
                         $this->did_permalink = true;