Segmentation fault in QDBusPendingReplyData::setMetaTypes

Example based on KDE:

QDBusReply< QList <QDBusObjectPath> > deviceList = iface.GetDevices();
if (deviceList.isValid())
.......

Iface is generated by qdbusxml2cpp:
inline QDBusPendingReply<QList<QDBusObjectPath> > GetDevices()

{ QList<QVariant> argumentList; return asyncCallWithArgumentList(QLatin1String("GetDevices"), argumentList); }

If there is a dbus error, deviceList.isValid() is false. If the program can't connect to dbus, the program segfaults.