[homekit] Thermostat mode HEAT is recognized although disabled

[tmsch13]

Expected Behavior

the docs (https://www.openhab.org/addons/integrations/homekit/) says:

Example: if your thermostat does not support cooling, then you need to limit mapping to OFF and HEAT values only:

String thermostat_current_mode "Thermostat Current Mode" (gThermostat) {homekit = "CurrentHeatingCoolingMode" [HEAT="HEATING", OFF="OFF“]}

So, because I only whant to setup "cooling" an „off“ for my AC Inverters, I configured as follows in OH GUI

config:
  COOL: ON
  OFF: OFF

Expected Behavior would be a Thermostat Device in Homekit, that has the modes „cooling“ an „off“ and shows the state „cooling“ when the connected openhab item hast state ON, and OFF when the item is in state OFF.

Current Behavior

The device only shows „cool" and „off“ in Homekit, but it allways says „heating“ when turned on.

In openhab-cli i found the answer:
[TRACE] [essories.HomekitCharacteristicFactory] - getKeyFromMapping: characteristic Thermostat, state OFF, mapping {OFF=OFF, HEAT=ON, COOL=ON}

So HEAT seams to have the value „ON“ by default, even if only cool and off is configured, an so heat is not beeing displayed in homekit. That way, ON is always reported as HEAT to Homekit.

So there seems to be no way to exclude the HEAT Mode and use a switch item to control the AC Inverter.

Possible Solution

maybe

config:
  COOL: ON
  OFF: OFF
  HEAT: disabled

or just disable it when no config is set

Steps to Reproduce (for Bugs)

Setup a Homekit.Thermostat group in OH.
Setup a Switch item, within that group with homekit config:

value: Thermostat.CurrentHeatingCoolingMode,Thermostat.TargetHeatingCoolingMode
config:
  COOL: ON
  OFF: OFF

Context

Your Environment

openhabian with openHAB 4.1.2