Description of problem: Fedora 22 is planning to switch over to dnf from yum as per https://fedoraproject.org/wiki/Changes/ReplaceYumWithDNF Please switch from yum/yum-utils to dnf/dnf-plugins-core. Thanks!
mirrormanager v1 does not call yum itself anywhere. Mirrormanager v2 is now in production in Fedora Infrastructure anyhow. Closing.