$ git clone -n https://src.fedoraproject.org/rpms/rust-ansi_term.git /var/lib/mock/f45-build-40051-767/root/chroot_tmpdir/scmroot/rust-ansi_term
Cloning into '/var/lib/mock/f45-build-40051-767/root/chroot_tmpdir/scmroot/rust-ansi_term'...
$ git fetch origin b39f7b31fadec41851a60efaf025c6c5eb59b20d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-ansi_term
 * [new ref]         b39f7b31fadec41851a60efaf025c6c5eb59b20d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b39f7b3 Regenerate with rust2rpm v28