$ git clone -n https://gitee.com/src-opencloudos-rpms/perl-Tie-RefHash.git /var/lib/mock/dist-oc9-build-71393-47553/root/chroot_tmpdir/scmroot/perl-Tie-RefHash
Cloning into '/var/lib/mock/dist-oc9-build-71393-47553/root/chroot_tmpdir/scmroot/perl-Tie-RefHash'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/perl-Tie-RefHash
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f882fd6 import perl-Tie-RefHash-1.40-5.tl4