Fixed use of null in jsound unions
Fixed use of null in jsound unions

bgarrels/zorba,bgarrels/zorba,28msec/zorba,28msec/zorba,28msec/zorba,bgarrels/zorba,bgarrels/zorba,bgarrels/zorba,bgarrels/zorba,28msec/zorba,28msec/zorba,bgarrels/zorba,28msec/zorba,bgarrels/zorba,28msec/zorba,28msec/zorba,28msec/zorba