Ticket #22338: 22338.4.diff

src/wp-admin/includes/post.php

@@ -1255 +1255 @@
         $post->post_name = $original_name;
         unset($post->filter);
 
-        return $permalink;
+        /**
+         * Filter the sample permalink.
+         *
+         * @since 4.4.0
+         *
+         * @param string  $permalink Sample permalink.
+         * @param int     $post_id   Post ID.
+         * @param string  $title     Post title.
+         * @param string  $name      Post name (slug).
+         * @param WP_Post $post      Post object.
+         */
+        return apply_filters( 'get_sample_permalink', $permalink, $post->ID, $title, $name, $post );
 }
 
 /**