$ git clone -n https://github.com/xcp-ng-rpms/xo-lite.git /var/lib/mock/v8.3-incoming-9565-28299/root/chroot_tmpdir/scmroot/xo-lite
Cloning into '/var/lib/mock/v8.3-incoming-9565-28299/root/chroot_tmpdir/scmroot/xo-lite'...
$ git fetch origin 772af0c6b78af72ef9bd15ad49a4c653c6464531:KOJI_FETCH_HEAD
From https://github.com/xcp-ng-rpms/xo-lite
 * [new ref]         772af0c6b78af72ef9bd15ad49a4c653c6464531 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 772af0c Merge pull request #24 from xcp-ng-rpms/gdy-v0.16.0