$ git clone -n https://gitee.com/src-opencloudos-rpms/perl-HTTP-Message.git /var/lib/mock/dist-oc9-build-43643-14591/root/chroot_tmpdir/scmroot/perl-HTTP-Message
Cloning into '/var/lib/mock/dist-oc9-build-43643-14591/root/chroot_tmpdir/scmroot/perl-HTTP-Message'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/perl-HTTP-Message
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9bd346a import perl-HTTP-Message-6.37-4.tl4