$ git clone -n https://src.fedoraproject.org/rpms/libbpf.git /var/lib/mock/f41-build-861685-169985/root/chroot_tmpdir/scmroot/libbpf
Cloning into '/var/lib/mock/f41-build-861685-169985/root/chroot_tmpdir/scmroot/libbpf'...
$ git fetch origin ba67e2aad703e98b160edafeee62b8dfc4661c0b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libbpf
 * [new ref]         ba67e2aad703e98b160edafeee62b8dfc4661c0b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ba67e2a release v1.4.7-1