Novajoin should always use the FQDN when running ipa-client-install. This is needed to allow the DNS domain of the OSP deployment to differ from the IdM realm.
Both 13 and 15 merged, closing this one as EOL: https://bugzilla.redhat.com/show_bug.cgi?id=1718660 https://bugzilla.redhat.com/show_bug.cgi?id=1718658