$ git clone -n https://src.fedoraproject.org/rpms/scap-security-guide.git /var/lib/mock/f42-build-side-1-3537150-46559/root/chroot_tmpdir/scmroot/scap-security-guide
Cloning into '/var/lib/mock/f42-build-side-1-3537150-46559/root/chroot_tmpdir/scmroot/scap-security-guide'...
$ git fetch origin dcf1d7738069d8ef33fe085ea54abf264197a25c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/scap-security-guide
 * [new ref]         dcf1d7738069d8ef33fe085ea54abf264197a25c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at dcf1d77 Update to 0.1.77