Fix own messages not showing as encrypted

src/timeline/TimelineModel.cpp

@@ -477,13 +477,13 @@ TimelineModel::addEvents(const mtx::responses::Timeline &timeline)
 
         std::vector<QString> ids = internalAddEvents(timeline.events);
 
-        if (ids.empty())
-                return;
-
+        if (!ids.empty()) {
                 beginInsertRows(QModelIndex(), 0, static_cast<int>(ids.size() - 1));
                 this->eventOrder.insert(this->eventOrder.begin(), ids.rbegin(), ids.rend());
                 endInsertRows();
+        }
 
+        if (!timeline.events.empty())
                 updateLastMessage();
 }