The issue is likely to be with qmlRegisterExtendedType that does not proxy the property change signal from the extension object to the extended object.
Oddly, even firing the 'sourceChanged' signal on the extended object manually does not seem to work.
The issue is likely to be with qmlRegisterExte ndedType that does not proxy the property change signal from the extension object to the extended object.
Oddly, even firing the 'sourceChanged' signal on the extended object manually does not seem to work.