[Freeipa-users] trustdomain-disable

Hi, In our setup we have a forest root domain. Let's call it mydomain.at with two subdomains domainone.mydomain.at and domaintwo.mydomain.at. Users are only located in domainone.mydomain.at. So we disabled domaintwo.mydomain.at with trustdomain-disable. Is there any way to prevent the forest root domain mydomain.at from beeing searched as we do not have any users there in order to gain another little bit of performance? Cheers, Ronald