Fix inquiry in case scheduling_type is nil
Fix inquiry in case scheduling_type is nil

lale-help/lale-help,jprokay/lale-help,jprokay/lale-help,diegoaad/lale-help,lale-help/lale-help,diegoaad/lale-help,lale-help/lale-help,jprokay/lale-help,diegoaad/lale-help,diegoaad/lale-help,lale-help/lale-help,jprokay/lale-help