This was explained by @rlkoshak here: Trrying to turn a device off after a certain amount of time
In short: If comparing to null (and only to null, not NULL !) === or !== is the better (and in openHAB2.2.0-1 requested) option.
This was explained by @rlkoshak here: Trrying to turn a device off after a certain amount of time
In short: If comparing to null (and only to null, not NULL !) === or !== is the better (and in openHAB2.2.0-1 requested) option.