enable scaleDownToSet with ptxtSpace==1
enable scaleDownToSet with ptxtSpace==1

shaih/HElib,berserkr/HElib,AlexanderViand/HElib,shaih/HElib,AlexanderViand/HElib,shaih/HElib,AlexanderViand/HElib,berserkr/HElib,berserkr/HElib