$ git clone -n https://github.com/xcp-ng-rpms/xo-lite.git /var/lib/mock/v8.3-incoming-9256-28016/root/chroot_tmpdir/scmroot/xo-lite
Cloning into '/var/lib/mock/v8.3-incoming-9256-28016/root/chroot_tmpdir/scmroot/xo-lite'...
$ git fetch origin 052e17f2bf60100ecc429603674715d31d5fcc8b:KOJI_FETCH_HEAD
From https://github.com/xcp-ng-rpms/xo-lite
 * [new ref]         052e17f2bf60100ecc429603674715d31d5fcc8b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 052e17f Merge pull request #22 from xcp-ng-rpms/gdy-v0.14.1