$ git clone -n https://gitee.com/src-opencloudos-rpms/rhc.git /var/lib/mock/dist-oc8-build-240000-82649/root/chroot_tmpdir/scmroot/rhc
Cloning into '/var/lib/mock/dist-oc8-build-240000-82649/root/chroot_tmpdir/scmroot/rhc'...
$ git fetch origin 563d13b97d52c0bc390597fd9734e48496391d15:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/rhc
 * [new ref]         563d13b97d52c0bc390597fd9734e48496391d15 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 563d13b import rhc-0.2.5-7.tl3