Target temp range not transferred to Apple Home

[christiaandewit]

I’m using several Vthermostats with Sonoff temp sensors and IKEA smart plugs. Within Homey this works like a charm. But my preferred approach for controlling my home is through Apple Home. It simply has a higher spouse approval factor and I have to admit that I too like the UI in Apple Home better.
So I have added the Vthermostats with Homekitty. They show up as expected and are recognized as thermostats, but the target temperature range in Apple Home seems to be fixed to 10 to 38 degrees centigrade, whilst they’ve been set to 1 to 25 degrees in the advanced settings of the virtual device in Homey. Is this a limitation in Apple Home, a problem with the translation in Homekitty, or is it a bug in Vthermo?