$ git clone -n https://github.com/xcp-ng-rpms/net-snmp.git /var/lib/mock/v8.3-u-pcoval2-11289-29625/root/chroot_tmpdir/scmroot/net-snmp
Cloning into '/var/lib/mock/v8.3-u-pcoval2-11289-29625/root/chroot_tmpdir/scmroot/net-snmp'...
$ git fetch origin 8f6384c378f4db8056b6f17a037ac11f7678914e:KOJI_FETCH_HEAD
From https://github.com/xcp-ng-rpms/net-snmp
 * [new ref]         8f6384c378f4db8056b6f17a037ac11f7678914e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8f6384c bump release for test build