Phase for virtual heat pump

Release notes say:

  • Virtual heat pump/AC load devices’ Position and Phase Setting fields can now be configured even when S2 support isn’t enabled.

I did configure my heat pump on L3, and give this as an input:

{“/Ac/Power”:14.4,“/Ac/L3/Power”:14.4,“/Ac/L3/Voltage”:236.3,“/Ac/L3/Current”:0.1,“/Ac/Energy/Forward”:3989.28,“/Ac/L3/Energy/Forward”:3989.28}

All works, but when I open the heat pump device on the curb display it shows:

and when I click on it:

I expected to see the values on L3 here. Am I doing something wrong? Is the UI lacking behind and is this something what is going to be fixed? (Or do I have to use the old 3phase workaround where I only supply L3 with data)