on chat leave close the modal

public/src/client/chats.js

@@ -282,11 +282,17 @@ define('forum/chats', [
 			if (err) {
 				return app.alertError(err.message);
 			}
-			if (parseInt(roomId, 10) === ajaxify.data.roomId) {
+			if (parseInt(roomId, 10) === parseInt(ajaxify.data.roomId, 10)) {
 				ajaxify.go('user/' + ajaxify.data.userslug + '/chats');
 			} else {
 				el.remove();
 			}
+			require(['chat'], function (chat) {
+				var modal = chat.getModal(roomId);
+				if (modal.length) {
+					chat.close(modal);
+				}
+			});
 		});
 	};