$ git clone -n https://gitee.com/opencloudos-stream/xfce4-dev-tools.git /var/lib/mock/dist-oc9-epol-build-84899-57404/root/chroot_tmpdir/scmroot/xfce4-dev-tools
Cloning into '/var/lib/mock/dist-oc9-epol-build-84899-57404/root/chroot_tmpdir/scmroot/xfce4-dev-tools'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/xfce4-dev-tools
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f54860f package init