closes #3150

src/categories.js

@@ -159,7 +159,11 @@ var async = require('async'),
 		category.disabled = parseInt(category.disabled, 10) === 1;
 		category.icon = category.icon || 'hidden';
 		if (category.hasOwnProperty('post_count')) {
-			category.post_count = category.post_count || 0;
+			category.post_count = category.totalPostCount = category.post_count || 0;
+		}
+
+		if (category.hasOwnProperty('topic_count')) {
+			category.topic_count = category.totalTopicCount = category.topic_count || 0;
 		}
 
 		if (category.description) {
@@ -250,18 +254,23 @@ var async = require('async'),
 	};
 
 	function calculateTopicPostCount(category) {
-		if (!Array.isArray(category.children) || !category.children.length) {
+		if (!category) {
 			return;
 		}
 		var postCount = parseInt(category.post_count, 10) || 0;
 		var topicCount = parseInt(category.topic_count, 10) || 0;
+		if (!Array.isArray(category.children) || !category.children.length) {
+			category.totalPostCount = postCount;
+			category.totalTopicCount = topicCount;
+			return;
+		}
 
 		category.children.forEach(function(child) {
 			postCount += parseInt(child.post_count, 10) || 0;
 			topicCount += parseInt(child.topic_count, 10) || 0;
 		});
-		category.post_count = postCount;
+		category.totalPostCount = postCount;
-		category.topic_count = topicCount;
+		category.totalTopicCount = topicCount;
 	}
 
 	Categories.getParents = function(cids, callback) {