$ git clone -n https://gitee.com/src-opencloudos-rpms/nano.git /var/lib/mock/dist-oc9-build-121150-71560/root/chroot_tmpdir/scmroot/nano
Cloning into '/var/lib/mock/dist-oc9-build-121150-71560/root/chroot_tmpdir/scmroot/nano'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/nano
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3d71b39 import nano-8.0-3.tl4