[Freeipa-users] disparity between ipa-client-install and ipa host-add

When attempting to debug another problem with FreeIPA, I noticed something odd: If I have an IPA domain example.com, I can do an ipa-client-install from a machine named c.d.example.com and it successfully adds the client to the domain and updates IPA's DNS, but if I do an ipa host-add of c.d.example.com it gives an error saying ipa: ERROR: DNS zone d.example.com. not found which is correct, inasmuch as I never created a d.example.com zone. But ipa-client-install happily added c.d to the example.com zone. So which of these two commands is doing the right thing? -- JF