$ git clone -n https://gitee.com/src-opencloudos-rpms/ocpkg /var/lib/mock/dist-oc9-epol-build-123614-73041/root/chroot_tmpdir/scmroot/ocpkg
Cloning into '/var/lib/mock/dist-oc9-epol-build-123614-73041/root/chroot_tmpdir/scmroot/ocpkg'...
$ git fetch origin f1358bfddb409d0ee435a164847336adb4812c9d:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/ocpkg
 * [new ref]         f1358bfddb409d0ee435a164847336adb4812c9d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f1358bf indicate required koji