"Invalid modes mode: heat" in Home Assistant log

[climategadgets]

Expected Behavior

• No undesired log messages appear in Home Assistant log
• All actions are available via Home Assistant interface

Actual Behavior

• Home Assistant log contains the Invalid modes mode: heat line at ERROR level repeated once per zone update (i.e. a lot)
• Zone visualization doesn't contain the correct icon, and the zone can't be turned back on once shut off (see the screenshots below), the control is missing
• ...or so Home Assistant thinks, the affected zone is not actually shut off in HCC
• Random zones are affected, different after each HCC restart

Root Cause

Correct mode is missing from the discovery packet emitted for the affected zone[s]. Compare:

Right:

  "name": "Family Room",
  "mode_command_topic": "~/mode/command",
  "mode_state_topic": "~/state",
  "mode_state_template": "{{value_json.mode}}",
  "modes": [
    "off",
    "heat"
  ],

Wrong:

{
  "name": "Dining Room",
  "mode_command_topic": "~/mode/command",
  "mode_state_topic": "~/state",
  "mode_state_template": "{{value_json.mode}}",
  "modes": [
    "off"
  ],