$ git clone -n https://src.fedoraproject.org/rpms/augeas.git /var/lib/mock/f41-build-851813-166079/root/chroot_tmpdir/scmroot/augeas
Cloning into '/var/lib/mock/f41-build-851813-166079/root/chroot_tmpdir/scmroot/augeas'...
$ git fetch origin 01a173e9abb04a4d227020c6618e206d10b865ae:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/augeas
 * [new ref]         01a173e9abb04a4d227020c6618e206d10b865ae -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 01a173e Move to latest upstream