$ git clone -n https://gitee.com/src-opencloudos-rpms/tftp.git /var/lib/mock/dist-oc8-build-252577-84207/root/chroot_tmpdir/scmroot/tftp
Cloning into '/var/lib/mock/dist-oc8-build-252577-84207/root/chroot_tmpdir/scmroot/tftp'...
$ git fetch origin 73ad6730d55eafd3b53b511d030dcd52929f1695:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/tftp
 * [new ref]         73ad6730d55eafd3b53b511d030dcd52929f1695 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 73ad673 import tftp-5.2-28.tl3