if (!get(this, 'changeFired') && (!isNone(this.getAttr('startTime')) || !isNone(this.getAttr('startUnix')))) {
            setStart(this, setUserStart(this, (this.getAttr('startTime') || this.getAttr('startUnix'))));
        } else if (isNone(getStart(this))) {
            setStart(this, _time().timestamp());
        }