$ git clone -n https://github.com/xcp-ng-rpms/intel-i40e /var/lib/mock/v8.3-incoming-10320-28862/root/chroot_tmpdir/scmroot/intel-i40e
Cloning into '/var/lib/mock/v8.3-incoming-10320-28862/root/chroot_tmpdir/scmroot/intel-i40e'...
$ git fetch origin ad170e1a1e2c83f1ec058761d69af68250ff548e:KOJI_FETCH_HEAD
From https://github.com/xcp-ng-rpms/intel-i40e
 * [new ref]         ad170e1a1e2c83f1ec058761d69af68250ff548e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ad170e1 Merge branch 'XS-8.3' into 8.3-XS83-2.25.11-4