$ git clone -n https://src.fedoraproject.org/rpms/sysstat.git /var/lib/mock/f38-build-side-42-init-devel-593274-26150/root/chroot_tmpdir/scmroot/sysstat
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-593274-26150/root/chroot_tmpdir/scmroot/sysstat'...
$ git fetch origin cf48e60a10f7d5045958662bf755689b0ef34410:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/sysstat
 * [new ref]         cf48e60a10f7d5045958662bf755689b0ef34410 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cf48e60 Update to v12.7.2 (rhbz#2165400)