$ git clone -n https://gitee.com/src-opencloudos-rpms/rhc.git /var/lib/mock/dist-oc8-build-120322-71239/root/chroot_tmpdir/scmroot/rhc
Cloning into '/var/lib/mock/dist-oc8-build-120322-71239/root/chroot_tmpdir/scmroot/rhc'...
$ git fetch origin 1862c853e98ea32f1e82ff340fb53c2a10be0ead:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/rhc
 * [new ref]         1862c853e98ea32f1e82ff340fb53c2a10be0ead -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1862c85 import rhc-0.2.5-1.tl3