$ git clone -n https://src.fedoraproject.org/rpms/rust-below-view.git /var/lib/mock/f41-build-830346-14801/root/chroot_tmpdir/scmroot/rust-below-view
Cloning into '/var/lib/mock/f41-build-830346-14801/root/chroot_tmpdir/scmroot/rust-below-view'...
$ git fetch origin 30371a6fe9e28c2b64f451e727f66b8cfa02b1a2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-below-view
 * [new ref]         30371a6fe9e28c2b64f451e727f66b8cfa02b1a2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 30371a6 Update to 0.8.1 (rhbz#2272254)