$ git clone -n https://gitee.com/src-opencloudos-rpms/perl-XML-Catalog.git /var/lib/mock/dist-oc9-build-71414-47553/root/chroot_tmpdir/scmroot/perl-XML-Catalog
Cloning into '/var/lib/mock/dist-oc9-build-71414-47553/root/chroot_tmpdir/scmroot/perl-XML-Catalog'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/perl-XML-Catalog
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3312186 import perl-XML-Catalog-1.03-5.tl4