$ git clone -n https://gitee.com/src-opencloudos-rpms/lftp.git /var/lib/mock/dist-oc9-build-127954-77083/root/chroot_tmpdir/scmroot/lftp
Cloning into '/var/lib/mock/dist-oc9-build-127954-77083/root/chroot_tmpdir/scmroot/lftp'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/lftp
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e0255a7 import lftp-4.9.2-6.tl4