[Reg 5.4 -> 5.5] quint8 interpreted as QString in qml

I've got some C++ code which handles UDP-communication (incoming only). Using Q_PROPERTY I make the UDP stream available for my QML-code. I've been using this setup since Qt 5.1 and it's always been working.

However, since Qt 5.5.1 (and perhaps 5.5, I have not been able to test this) a Q_PROPERTY of type quint8 is no longer interpreted as an int in QML, instead it's referred as a QString.

Is this intentional, or is it a bug? My workaround for the moment is to use "charCodeAt(0)" (udp.mySignal.charCodeAt(0)).