$ git clone -n https://gitee.com/src-opencloudos-rpms/tftp.git /var/lib/mock/dist-oc9-build-131425-78548/root/chroot_tmpdir/scmroot/tftp
Cloning into '/var/lib/mock/dist-oc9-build-131425-78548/root/chroot_tmpdir/scmroot/tftp'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/tftp
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 51b1447 import tftp-5.2-6.tl4