$ git clone -n https://src.fedoraproject.org/rpms/rust-spdx.git /var/lib/mock/f38-build-side-43-rust-devel-1421060-31465/root/chroot_tmpdir/scmroot/rust-spdx
Cloning into '/var/lib/mock/f38-build-side-43-rust-devel-1421060-31465/root/chroot_tmpdir/scmroot/rust-spdx'...
$ git fetch origin bc48171a0ad68704d428335b1429f07f0a0f5173:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-spdx
 * [new ref]         bc48171a0ad68704d428335b1429f07f0a0f5173 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bc48171 Initial import (#2237915)