Add clarifying notes to _process_on_off_device_c_heating_state() #5228

Job	Run time
Shellcheck	3s
Dependency	4s
Prepare	56s
Ruff check and force	24s
Check commit	43s
Create pytest cache for Python 3.13.0	15s
Create pytest cache for Python 3.12	4s
Run pytest using Python 3.13.0	21s
Run pytest using Python 3.12	16s
Process test coverage	25s
Run mypy	19s
Process test complexity	19s
Build and publish Python 🐍 distributions 📦 to TestPyPI	28s
	4m 37s

Provide feedback