closes #4643

public/src/client/recent.js

@@ -1,6 +1,6 @@
 'use strict';
 
-/* globals define, app, socket, utils */
+/* globals define, app, socket, utils, ajaxify, config */
 
 define('forum/recent', ['forum/infinitescroll', 'components'], function(infinitescroll, components) {
 	var	Recent = {};
@@ -55,11 +55,15 @@ define('forum/recent', ['forum/infinitescroll', 'components'], function(infinite
 			Recent.updateAlertText();
 		}
 
-		if (parseInt(data.topic.mainPid, 10) === parseInt(data.posts[0].pid, 10)) {
+		var post = data.posts[0];
+		if (!post || !post.topic) {
+			return;
+		}
+		if (parseInt(post.topic.mainPid, 10) === parseInt(post.pid, 10)) {
 			return;
 		}
 
-		if (ajaxify.data.selectedCategory && parseInt(ajaxify.data.selectedCategory.cid, 10) !== parseInt(data.topic.cid, 10)) {
+		if (ajaxify.data.selectedCategory && parseInt(ajaxify.data.selectedCategory.cid, 10) !== parseInt(post.topic.cid, 10)) {
 			return;
 		}
 
@@ -68,7 +72,7 @@ define('forum/recent', ['forum/infinitescroll', 'components'], function(infinite
 		}
 
 		if (ajaxify.data.selectedFilter && ajaxify.data.selectedFilter.url === 'unread/watched') {
-			socket.emit('topics.isFollowed', data.topic.tid, function(err, isFollowed) {
+			socket.emit('topics.isFollowed', post.tid, function(err, isFollowed) {
 				if (err) {
 					app.alertError(err.message);
 				}

src/socket.io/topics/unread.js

@@ -46,7 +46,7 @@ module.exports = function(SocketTopics) {
 	};
 
 	SocketTopics.markCategoryTopicsRead = function(socket, cid, callback) {
-		topics.getUnreadTids(cid, socket.uid, function(err, tids) {
+		topics.getUnreadTids(cid, socket.uid, '', function(err, tids) {
 			if (err) {
 				return callback(err);
 			}

src/topics/create.js

@@ -274,7 +274,7 @@ module.exports = function(Topics) {
 						posts.getUserInfoForPosts([postData.uid], uid, next);
 					},
 					topicInfo: function(next) {
-						Topics.getTopicFields(tid, ['tid', 'title', 'slug', 'cid', 'postcount'], next);
+						Topics.getTopicFields(tid, ['tid', 'title', 'slug', 'cid', 'postcount', 'mainPid'], next);
 					},
 					parents: function(next) {
 						Topics.addParentPosts([postData], next);