why does a KCM trigger virtualGeometryChanged

[Martin Koller]

In liquidshell I open e.g. the KCM for the bluetooth configuration via

dialog = new KCMultiDialog(this);
dialog->addModule(KPluginMetaData("plasma/kcms/systemsettings/kcm_bluetooth"));

addModule() however seems now (KF 6.11.0, Qt 6.8.2, X11) to have an undesired
side effect leading to messing with the whole screen, that is:
The Desktop Panel is suddenly made invisible, then visible again, but positioned
ABOVE the previous Panel Position (above the strut which I defined earlier
with KX11Extras::setStrut()
Also I see that this code above triggers the signal QScreen::virtualGeometryChanged()

Why that???
What's going on here? This did not happen with KF5
-- 
Best regards/Schöne Grüße

Martin
A: Because it breaks the logical sequence of discussion
Q: Why is top posting bad?

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