$ git clone -n https://src.fedoraproject.org/rpms/libbpf.git /var/lib/mock/f41-build-side-1-2956383-35552/root/chroot_tmpdir/scmroot/libbpf
Cloning into '/var/lib/mock/f41-build-side-1-2956383-35552/root/chroot_tmpdir/scmroot/libbpf'...
$ git fetch origin 9e220025b9e33830d4bda0880c5d0c82c067a230:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libbpf
 * [new ref]         9e220025b9e33830d4bda0880c5d0c82c067a230 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9e22002 release v1.4.6-1