$ git clone -n https://src.fedoraproject.org/rpms/rust-spdx.git /var/lib/mock/f40-build-2568453-62223/root/chroot_tmpdir/scmroot/rust-spdx
Cloning into '/var/lib/mock/f40-build-2568453-62223/root/chroot_tmpdir/scmroot/rust-spdx'...
$ git fetch origin 8d0cdf6ce2c6fd06a82558c197ef5f2843203c92:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-spdx
 * [new ref]         8d0cdf6ce2c6fd06a82558c197ef5f2843203c92 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8d0cdf6 Update to version 0.10.4; Fixes RHBZ#2266026