Reinitialize room when creating a RoomController so that we start off with a clean slate, as it expects/

webclient/components/matrix/event-handler-service.js

@@ -45,6 +45,12 @@ angular.module('eventHandlerService', [])
         }
     }
 
+    var reInitRoom = function(room_id) {
+        $rootScope.events.rooms[room_id] = {};
+        $rootScope.events.rooms[room_id].messages = [];
+        $rootScope.events.rooms[room_id].members = {};
+    }
+    
     var handleMessage = function(event, isLiveEvent) {
         if ("membership_target" in event.content) {
             event.user_id = event.content.membership_target;
@@ -118,6 +124,10 @@ angular.module('eventHandlerService', [])
             for (var i=0; i<events.length; i++) {
                 this.handleEvent(events[i], isLiveEvents);
             }
-        }
+        },
+
+        reInitRoom: function(room_id) {
+            reInitRoom(room_id);
+        },
     };
 }]);

webclient/room/room-controller.js

@@ -316,6 +316,8 @@ angular.module('RoomController', ['ngSanitize', 'mUtilities'])
     };
 
     var onInit2 = function() {
+        eventHandlerService.reInitRoom($scope.room_id); 
+
         // Join the room
         matrixService.join($scope.room_id).then(
             function() {