$ git clone -n https://gitee.com/src-opencloudos-rpms/perl-Exporter.git /var/lib/mock/dist-oc9-build-62976-16463/root/chroot_tmpdir/scmroot/perl-Exporter
Cloning into '/var/lib/mock/dist-oc9-build-62976-16463/root/chroot_tmpdir/scmroot/perl-Exporter'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/perl-Exporter
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d3f5be8 import perl-Exporter-5.77-5.tl4