Fixes a small issue where `_last_regulation_change` is being set to `now` even though the new temperature is not sent to the thermostats (because `abs(dtemp) < self._auto_regulation_dtemp:`)
Fixes a small issue where `_last_regulation_change` is being set to `now` even though the new temperature is not sent to the thermostats (because `abs(dtemp) < self._auto_regulation_dtemp:`)