Before this, if you reloaded the entry and afterwards edited the entry, it would throw a KeyError in the console. This actually doesn't cause anything to happen (pure luck!), but this is caused by HA not automatically un-registering the update_listener. This fixes that.
Before this, if you reloaded the entry and afterwards edited the entry, it would throw a KeyError in the console. This actually doesn't cause anything to happen (pure luck!), but this is caused by HA not automatically un-registering the update_listener. This fixes that.