$ git clone -n https://gitee.com/src-opencloudos-rpms/perl-Filter.git /var/lib/mock/dist-oc9-build-43628-14591/root/chroot_tmpdir/scmroot/perl-Filter
Cloning into '/var/lib/mock/dist-oc9-build-43628-14591/root/chroot_tmpdir/scmroot/perl-Filter'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/perl-Filter
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 867b0d0 import perl-Filter-1.64-3.tl4