Ticket #23665: 23665-post-name.patch

wp-includes/post.php

@@ -3016 +3016 @@
  * @return string unique slug for the post, based on $post_name (with a -1, -2, etc. suffix)
  */
 function wp_unique_post_slug( $slug, $post_ID, $post_status, $post_type, $post_parent ) {
-        if ( in_array( $post_status, array( 'draft', 'pending', 'auto-draft' ) ) )
+        if ( in_array( $post_status, array( 'draft', 'pending', 'auto-draft' ) ) || ( 'inherit' == $post_status && 'revision' == $post_type ) )
                 return $slug;
 
         global $wpdb, $wp_rewrite;