$ git clone -n https://gitee.com/src-opencloudos-rpms/rhc.git /var/lib/mock/dist-oc8-build-243551-83134/root/chroot_tmpdir/scmroot/rhc
Cloning into '/var/lib/mock/dist-oc8-build-243551-83134/root/chroot_tmpdir/scmroot/rhc'...
$ git fetch origin e8baa85144317283f35a8997a0829bcfb023d729:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/rhc
 * [new ref]         e8baa85144317283f35a8997a0829bcfb023d729 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e8baa85 import rhc-0.2.5-8.tl3