Ticket #10181: 10181.diff

wp-includes/post.php

@@ -1192 +1192 @@
                 foreach ( (array) $children as $child )
                         clean_page_cache($child->ID);
 
-                $wp_rewrite->flush_rules();
+                $wp_rewrite->flush_rules(false);
         } else {
                 clean_post_cache($postid);
         }
@@ -3354 +3354 @@
                 // Avoid flushing rules for every post during import.
                 if ( !defined('WP_IMPORTING') ) {
                         global $wp_rewrite;
-                        $wp_rewrite->flush_rules();
+                        $wp_rewrite->flush_rules(false);
                 }
         } else {
                 clean_post_cache($post_id);

wp-includes/rewrite.php

@@ -1822 +1822 @@
          *
          * @since 2.0.1
          * @access public
+         * @param $hard bool Whether to update .htaccess (hard flush) or just update rewrite_rules transient (soft flush). Default is true (hard).
          */
-        function flush_rules() {
+        function flush_rules($hard = true) {
                 delete_transient('rewrite_rules');
                 $this->wp_rewrite_rules();
-                if ( function_exists('save_mod_rewrite_rules') )
+                if ( $hard && function_exists('save_mod_rewrite_rules') )
                         save_mod_rewrite_rules();
-                if ( function_exists('iis7_save_url_rewrite_rules') )
+                if ( $hard && function_exists('iis7_save_url_rewrite_rules') )
                         iis7_save_url_rewrite_rules();
         }
 

wp-admin/admin.php

@@ -146 +146 @@
 
         // Make sure rules are flushed
         global $wp_rewrite;
-        $wp_rewrite->flush_rules();
+        $wp_rewrite->flush_rules(false);
 
         exit();
 } else {