Today the weather changed during the compensation window which resulted in lights On, Off and then On again

2010-03-10 00:00:01 Today is Wednesday. Sunrise will be at 0641 and Sunset at 1803
2010-03-10 17:33:02 Lights_On, Weather Condition: Fog, Total time compensation (negativ is ON earlier and OFF later): -30
2010-03-10 17:42:01 Lights_Off, Weather Condition: Overcast, Total time compensation (negativ is ON earlier and OFF later): -15
2010-03-10 17:48:02 Lights_On, Weather Condition: Overcast, Total time compensation (negativ is ON earlier and OFF later): -15
I think it should stay On even if the weather changes.