Presets not working when 'temperature' not set.

[arogers86]

Presets do not work if the 'temperature' is not set

Readme states the following 'If temperature is not set but target_temp_low and target_temp_high are set, the temperature will be picked based on hvac mode.'

following is my YAML

name: HVAC
heater: input_boolean.heater_running
cooler: input_boolean.air_con_running
target_sensor: sensor.whole_house_average_temperature
cold_tolerance: 0.5
hot_tolerance: 0.3
heat_cool_mode: false
#initial_hvac_mode: "off" # NOTE! If this is set, the saved state will not be restored after HA restarts.
min_temp: 10
max_temp: 35
min_cycle_duration:
  minutes: 5
keep_alive:
  minutes: 3
precision: 0.5
target_temp_step: 0.5
home:
  target_temp_low: 20
  target_temp_high: 26
away:
  target_temp_low: 12
  target_temp_high: 31
sleep:
  target_temp_low: 15
  target_temp_high: 28

Error message when calling service 'climate.set_preset_mode' Failed to call service climate.set_preset_mode. Unknown error

If I change the preset to the following, the preset works, but it does not have the desired effect when selecting heat or cool mode independantly.

home:
  temperature: 22
  target_temp_low: 20
  target_temp_high: 26