Update libqmatrixclient.

Enable member lazy loading.
Some Qt 5.12 fix.

src/controller.cpp

@@ -42,7 +42,12 @@ Controller::Controller(QObject* parent)
   QTimer::singleShot(0, this, SLOT(invokeLogin()));
 }
 
-Controller::~Controller() {}
+Controller::~Controller() {
+  for (Connection* c : m_connections) {
+    c->stopSync();
+    c->saveState();
+  }
+}
 
 inline QString accessTokenFileName(const AccountSettings& account) {
   QString fileName = account.userId();
@@ -107,6 +112,8 @@ void Controller::addConnection(Connection* c) {
 
   m_connections.push_back(c);
 
+  c->setLazyLoading(true);
+
   connect(c, &Connection::syncDone, this, [=] {
     emit syncDone();
     c->sync(30000);

src/imageprovider.cpp

@@ -29,6 +29,7 @@ QImage ImageProvider::requestImage(const QString& id, QSize* pSize,
   QUrl mxcUri{id};
 
   QImage result = image(mxcUri, requestedSize);
+  if (result.isNull()) return {};
   if (!requestedSize.isEmpty() && result.size() != requestedSize) {
     QImage scaled = result.scaled(requestedSize, Qt::KeepAspectRatio,
                                   Qt::SmoothTransformation);

src/spectralroom.cpp

@@ -195,8 +195,6 @@ QDateTime SpectralRoom::lastActiveTime() {
   return messageEvents().rbegin()->get()->timestamp();
 }
 
-float SpectralRoom::orderForTag(QString name) { return tag(name).order; }
-
 int SpectralRoom::savedTopVisibleIndex() const {
   return firstDisplayedMarker() == timelineEdge()
              ? 0

src/spectralroom.h

@@ -66,7 +66,6 @@ class SpectralRoom : public Room {
     }
   }
 
-  Q_INVOKABLE float orderForTag(QString name);
   Q_INVOKABLE int savedTopVisibleIndex() const;
   Q_INVOKABLE int savedBottomVisibleIndex() const;
   Q_INVOKABLE void saveViewport(int topIndex, int bottomIndex);

src/userlistmodel.cpp

@@ -34,12 +34,8 @@ void UserListModel::setRoom(QMatrixClient::Room* room) {
     connect(m_currentRoom, &Room::memberRenamed, this,
             &UserListModel::userAdded);
     {
-      QElapsedTimer et;
-      et.start();
       m_users = m_currentRoom->users();
       std::sort(m_users.begin(), m_users.end(), room->memberSorter());
-      qDebug() << "Sorting" << m_users.size() << "user(s) in"
-               << m_currentRoom->displayName() << "took" << et;
     }
     for (User* user : m_users) {
       connect(user, &User::avatarChanged, this, &UserListModel::avatarChanged);