$ git clone -n https://gitee.com/src-opencloudos-rpms/perl-Date-ISO8601.git /var/lib/mock/dist-oc9-build-62975-16463/root/chroot_tmpdir/scmroot/perl-Date-ISO8601
Cloning into '/var/lib/mock/dist-oc9-build-62975-16463/root/chroot_tmpdir/scmroot/perl-Date-ISO8601'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/perl-Date-ISO8601
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2ba9fde import perl-Date-ISO8601-0.005-5.tl4