$ git clone -n https://src.fedoraproject.org/rpms/certmonger.git /var/lib/mock/f41-build-883985-16584/root/chroot_tmpdir/scmroot/certmonger
Cloning into '/var/lib/mock/f41-build-883985-16584/root/chroot_tmpdir/scmroot/certmonger'...
$ git fetch origin dde88bfd42f453ab1f4b14246787cc52cf151969:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/certmonger
 * [new ref]         dde88bfd42f453ab1f4b14246787cc52cf151969 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at dde88bf Update to upstream 0.79.20