Q_INVOKABLE is not working with trailing return types, QTBUG-93952 is still unresolved

Q_INVOKABLE is not working with trailing return types,  the generated code does not compile. The bug is reproducable with attached 'app.zip'. The furthermore attached 'moc.cpp' (based on Qt 6.5.0) provides a possible fix (search for 'MOC_TRAILING' (the 'else' branch works with my test cases).