$ git clone -n https://gitee.com/src-opencloudos-rpms/rhc.git /var/lib/mock/dist-oc8-build-248906-83748/root/chroot_tmpdir/scmroot/rhc
Cloning into '/var/lib/mock/dist-oc8-build-248906-83748/root/chroot_tmpdir/scmroot/rhc'...
$ git fetch origin a9781b55aa616f8aa36b1064db4a418b4711dd81:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/rhc
 * [new ref]         a9781b55aa616f8aa36b1064db4a418b4711dd81 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a9781b5 import rhc-0.2.5-10.tl3