$ git clone -n https://src.fedoraproject.org/rpms/kmetronome.git /var/lib/mock/f45-build-15286-472/root/chroot_tmpdir/scmroot/kmetronome
Cloning into '/var/lib/mock/f45-build-15286-472/root/chroot_tmpdir/scmroot/kmetronome'...
$ git fetch origin 9d88b4d4987bd50ea87d204a2ca236b91aecbe48:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kmetronome
 * [new ref]         9d88b4d4987bd50ea87d204a2ca236b91aecbe48 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9d88b4d Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild