Fix two null pointer dereferences

src/models/messageeventmodel.cpp

@@ -975,6 +975,9 @@ QVariant MessageEventModel::getLatestMessageFromIndex(const int baseline)
     for (auto it = timelineBottom; it != limit; ++it) {
         auto evt = it->event();
         auto e = eventCast<const RoomMessageEvent>(evt);
+        if (!e) {
+            continue;
+        }
 
         auto content = (*it)->contentJson();
 

src/models/roomlistmodel.cpp

@@ -229,10 +229,13 @@ void RoomListModel::handleNotifications()
                 continue;
             }
             oldNotifications += notification["event"].toObject()["event_id"].toString();
+
             auto room = m_connection->room(notification["room_id"].toString());
+            auto currentRoom = RoomManager::instance().currentRoom();
+            bool roomIsActive = currentRoom && room->id() == currentRoom->id();
 
             // If room exists, room is NOT active OR the application is NOT active, show notification
-            if (room && !(room->id() == RoomManager::instance().currentRoom()->id() && QGuiApplication::applicationState() == Qt::ApplicationActive)) {
+            if (room && !(roomIsActive && QGuiApplication::applicationState() == Qt::ApplicationActive)) {
                 // The room might have been deleted (for example rejected invitation).
                 auto sender = room->user(notification["event"].toObject()["sender"].toString());