after applet's dataupdated is called, dirty=false

in DataEnginePrivate::connectSource, if it's an immediate call, and QMetaObject::invokeMethod(visualization, "dataUpdated" is called, means the datacontainers' dirty bit must be set to false, otherwise we will get two subsequent dataUpdated

can it have countereffects?

CCMAIL:plasma-devel@kde.org

dataengine.cpp

@@ -671,6 +671,7 @@ void DataEnginePrivate::connectSource(DataContainer *s, QObject *visualization,
         QMetaObject::invokeMethod(visualization, "dataUpdated",
                                   Q_ARG(QString, s->objectName()),
                                   Q_ARG(Plasma::DataEngine::Data, s->data()));
+        s->d->dirty = false;
     }
 }