$ git clone -n https://github.com/xcp-ng-rpms/xo-lite.git /var/lib/mock/v8.3-incoming-9169-27982/root/chroot_tmpdir/scmroot/xo-lite
Cloning into '/var/lib/mock/v8.3-incoming-9169-27982/root/chroot_tmpdir/scmroot/xo-lite'...
$ git fetch origin 7009173f056c23297c0f00429028b1ded8c3708d:KOJI_FETCH_HEAD
From https://github.com/xcp-ng-rpms/xo-lite
 * [new ref]         7009173f056c23297c0f00429028b1ded8c3708d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7009173 Merge pull request #20 from xcp-ng-rpms/gdy-v0.14.0