$ git clone -n https://gitee.com/src-opencloudos-rpms/rhc.git /var/lib/mock/dist-oc8-build-236195-82243/root/chroot_tmpdir/scmroot/rhc
Cloning into '/var/lib/mock/dist-oc8-build-236195-82243/root/chroot_tmpdir/scmroot/rhc'...
$ git fetch origin d463c236c9ae66bc8fe5efeab144cfc5b16fd900:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/rhc
 * [new ref]         d463c236c9ae66bc8fe5efeab144cfc5b16fd900 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d463c23 import rhc-0.2.5-4.tl3