$ git clone -n https://src.fedoraproject.org/rpms/rust-redlib.git /var/lib/mock/f41-build-857089-167884/root/chroot_tmpdir/scmroot/rust-redlib
Cloning into '/var/lib/mock/f41-build-857089-167884/root/chroot_tmpdir/scmroot/rust-redlib'...
$ git fetch origin baa683439af0c9a1d0ddc96f94797716b9c995a4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-redlib
 * [new ref]         baa683439af0c9a1d0ddc96f94797716b9c995a4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at baa6834 Update brotli from 6.0 to 7.0