$ git clone -n https://gitee.com/opencloudos-stream/xz /var/lib/mock/dist-ocs23-build-7932-61/root/chroot_tmpdir/scmroot/xz
Cloning into '/var/lib/mock/dist-ocs23-build-7932-61/root/chroot_tmpdir/scmroot/xz'...
$ git fetch origin a75417408e32844ca9dacb6e6871b579047782dc:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/xz
 * [new ref]         a75417408e32844ca9dacb6e6871b579047782dc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a754174 update