closes #2982

update url with new slug on topic title edit

public/src/client/topic/events.js

@@ -1,7 +1,7 @@
 
 'use strict';
 
-/* globals app, ajaxify, define, socket, templates */
+/* globals config, app, ajaxify, define, socket, templates */
 
 define('forum/topic/events', [
 	'forum/topic/browsing',
@@ -101,6 +101,9 @@ define('forum/topic/events', [
 			topicTitle = components.get('topic/title');
 
 		if (topicTitle.length && data.title) {
+			var newUrl = 'topic/' + data.slug + (window.location.search ? window.location.search : '');
+			history.replaceState({url: newUrl}, null, window.location.protocol + '//' + window.location.host + config.relative_path + '/' + newUrl);
+
 			topicTitle.fadeOut(250, function() {
 				topicTitle.html(data.title).fadeIn(250);
 			});

src/postTools.js

@@ -115,6 +115,7 @@ var cache = LRU({
 									cid: results.cid,
 									uid: postData.uid,
 									title: validator.escape(title),
+									slug: topicData.slug,
 									isMainPost: results.isMain,
 									tags: tags
 								});

src/socket.io/posts.js

@@ -310,6 +310,7 @@ SocketPosts.edit = function(socket, data, callback) {
 			pid: data.pid,
 			handle: data.handle,
 			title: results.topic.title,
+			slug: results.topic.slug,
 			isMainPost: results.topic.isMainPost,
 			tags: results.topic.tags,
 			content: results.content