KRACOEUS-5147 : Fix error when IE sets the value of the pi id to "null" instead of null.
KRACOEUS-5147 : Fix error when IE sets the value of the pi id to "null" instead of null.

blackcathacker/kc.preclean,blackcathacker/kc.preclean,blackcathacker/kc.preclean,blackcathacker/kc.preclean