$ git clone -n https://github.com/xcp-ng-rpms/net-snmp.git /var/lib/mock/v8.3-incoming-10115-28716/root/chroot_tmpdir/scmroot/net-snmp
Cloning into '/var/lib/mock/v8.3-incoming-10115-28716/root/chroot_tmpdir/scmroot/net-snmp'...
$ git fetch origin 039e04484ea0a4115d2b0eb2cbf9e4891297ed55:KOJI_FETCH_HEAD
From https://github.com/xcp-ng-rpms/net-snmp
 * [new ref]         039e04484ea0a4115d2b0eb2cbf9e4891297ed55 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 039e044 Merge branch 'XS-8.3' into 8.3-XS-1557