$ git clone -n https://gitee.com/src-opencloudos-rpms/ocpkg /var/lib/mock/dist-oc8-build-57235-15492/root/chroot_tmpdir/scmroot/ocpkg
Cloning into '/var/lib/mock/dist-oc8-build-57235-15492/root/chroot_tmpdir/scmroot/ocpkg'...
$ git fetch origin ec87914c7e5bda7cbecf6168484a5a2988ab702d:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/ocpkg
 * [new ref]         ec87914c7e5bda7cbecf6168484a5a2988ab702d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ec87914 fix bug 0.6.8