$ git clone -n https://src.fedoraproject.org/rpms/rust-libbpf-cargo0.23.git /var/lib/mock/f41-build-side-1-3137347-39794/root/chroot_tmpdir/scmroot/rust-libbpf-cargo0.23
Cloning into '/var/lib/mock/f41-build-side-1-3137347-39794/root/chroot_tmpdir/scmroot/rust-libbpf-cargo0.23'...
$ git fetch origin 8b2697941fa559312a799e2d666c786e5e81eee6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-libbpf-cargo0.23
 * [new ref]         8b2697941fa559312a799e2d666c786e5e81eee6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8b26979 Update goblin dependency to 0.9