[REG: 5.12.0->5.12.1]: When a type is using Q_GADGET and is marked as a primitive type with Q_DECLARE_METATYPE then it cannot be accessed in QML when passed via a signal

[REG: 5.12.0->5.12.1]: When a type is using Q_GADGET and is marked as a primitive type with Q_DECLARE_METATYPE then it cannot be access the properties on it in QML when passed via a signal.

If the type is not marked as a primitive type in Q_DECLARE_METATYPE then it is working fine.