$ git clone -n https://src.fedoraproject.org/rpms/rust-libbpf-rs.git /var/lib/mock/f38-build-side-42-init-devel-1393969-31050/root/chroot_tmpdir/scmroot/rust-libbpf-rs
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1393969-31050/root/chroot_tmpdir/scmroot/rust-libbpf-rs'...
$ git fetch origin a141d065b684b8976f3f378d0ff6d3f841ebee8b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-libbpf-rs
 * [new ref]         a141d065b684b8976f3f378d0ff6d3f841ebee8b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a141d06 Update to 0.21.2