$ git clone -n https://github.com/xcp-ng-rpms/net-snmp.git /var/lib/mock/v8.3-incoming-11306-29636/root/chroot_tmpdir/scmroot/net-snmp
Cloning into '/var/lib/mock/v8.3-incoming-11306-29636/root/chroot_tmpdir/scmroot/net-snmp'...
$ git fetch origin bf34731c9b3add11fb170b4796438756aa01dc96:KOJI_FETCH_HEAD
From https://github.com/xcp-ng-rpms/net-snmp
 * [new ref]         bf34731c9b3add11fb170b4796438756aa01dc96 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bf34731 Merge pull request #6 from xcp-ng-rpms/pcoval/review/master