$ git clone -n https://src.fedoraproject.org/rpms/autorestic.git /var/lib/mock/f42-build-866220-173809/root/chroot_tmpdir/scmroot/autorestic
Cloning into '/var/lib/mock/f42-build-866220-173809/root/chroot_tmpdir/scmroot/autorestic'...
$ git fetch origin 323324015a2b4524dd1dd0a5f744c4b038fab33c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/autorestic
 * [new ref]         323324015a2b4524dd1dd0a5f744c4b038fab33c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3233240 Update to 1.8.3 upstream release