$ git clone -n https://src.fedoraproject.org/rpms/bpfmon.git /var/lib/mock/f40-build-2208836-52141/root/chroot_tmpdir/scmroot/bpfmon
Cloning into '/var/lib/mock/f40-build-2208836-52141/root/chroot_tmpdir/scmroot/bpfmon'...
$ git fetch origin 3d3158704731e085d01debcbeec5f0131173fde2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/bpfmon
 * [new ref]         3d3158704731e085d01debcbeec5f0131173fde2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3d31587 version 2.52