$ git clone -n https://github.com/xcp-ng-rpms/xo-lite.git /var/lib/mock/v8.3-incoming-11473-29778/root/chroot_tmpdir/scmroot/xo-lite
Cloning into '/var/lib/mock/v8.3-incoming-11473-29778/root/chroot_tmpdir/scmroot/xo-lite'...
$ git fetch origin ca039f309b0f48af1b89337476718de542465871:KOJI_FETCH_HEAD
From https://github.com/xcp-ng-rpms/xo-lite
 * [new ref]         ca039f309b0f48af1b89337476718de542465871 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ca039f3 Merge pull request #28 from xcp-ng-rpms/xcpng-3129-gdy-v0.20.0