$ git clone -n https://github.com/xcp-ng-rpms/net-snmp.git /var/lib/mock/v8.3-incoming-11291-29620/root/chroot_tmpdir/scmroot/net-snmp
Cloning into '/var/lib/mock/v8.3-incoming-11291-29620/root/chroot_tmpdir/scmroot/net-snmp'...
$ git fetch origin 25acbabe170d4cebdf6e858a5b0e13b5eaf53ef5:KOJI_FETCH_HEAD
From https://github.com/xcp-ng-rpms/net-snmp
 * [new ref]         25acbabe170d4cebdf6e858a5b0e13b5eaf53ef5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 25acbab Fix snmpd config patching on install