fixing regression for #2355, introduced in a129075

public/src/client/category.js

@@ -332,7 +332,8 @@ define('forum/category', ['composer', 'forum/pagination', 'forum/infinitescroll'
 		$(window).trigger('action:categories.loading');
 		infinitescroll.loadMore('categories.loadMore', {
 			cid: ajaxify.variables.get('category_id'),
-			after: after
+			after: after,
+			author: utils.getQueryParams().author
 		}, function (data, done) {
 
 			if (data.topics && data.topics.length) {

public/src/utils.js

@@ -305,6 +305,24 @@
 			return a;
 		},
 
+		getQueryParams: function() {
+			var search = window.location.search.slice(1),
+				data = {};
+
+			search = search.split('&');
+			for(var x=0,numParams=search.length,temp;x<numParams;x++) {
+				temp = search[x].split('=');
+				if (temp[0].substr(-2, 2) !== '[]') {
+					data[temp[0]] = temp[1];
+				} else {
+					data[temp[0].slice(0, -2)] = data[temp[0].slice(0, -2)] || [];
+					data[temp[0].slice(0, -2)].push(temp[1]);
+				}
+			}
+
+			return data;
+		},
+
 		// return boolean if string 'true' or string 'false', or if a parsable string which is a number
 		// also supports JSON object and/or arrays parsing
 		toType: function(str) {

src/socket.io/categories.js

@@ -39,6 +39,13 @@ SocketCategories.loadMore = function(socket, data, callback) {
 		},
 		settings: function(next) {
 			user.getSettings(socket.uid, next);
+		},
+		targetUid: function(next) {
+			if (data.author) {
+				user.getUidByUserslug(data.author, next);
+			} else {
+				next();
+			}
 		}
 	}, function(err, results) {
 		if (err) {
@@ -55,8 +62,9 @@ SocketCategories.loadMore = function(socket, data, callback) {
 		categories.getCategoryTopics({
 			cid: data.cid,
 			start: start,
-			end: end,
+			stop: end,
-			uid: socket.uid
+			uid: socket.uid,
+			targetUid: results.targetUid
 		}, function(err, data) {
 			if (err) {
 				return callback(err);