Ventilation boost not working properly per zone

[kgeree]

trafficstars

Before submitting a new issue

• [X] I redownloaded the latest release and restarted Home Assistant
• [X] I've checked known issues
• [X] I've enabled debug logs and attached the relevant logs to this ticket

Problem description

Please describe what you were trying to do, what happened, and what you expected to happen.

When I activate the ventilation boost in the myVaillant App, I can select which "All zones" or "Zone1", "Zone2", "Zone3" - where to apply the ventilation boost. (It has impact as the heating/cooling gets completely disabled in that particular zone. If I only select 1 zone, ventilation gets enabled for only that zone:

While if I try to turn on ventilation for only one zone via HomeAssistant, Ventilation boots gets enabled for All zones.

Expected behavior: be to be able to enable Ventilation boost per Zone (and maybe have a separate switch for All zones)

Logs

no errors visible in logs