$ git clone -n https://gitee.com/src-opencloudos-rpms/perl-libwww-perl.git /var/lib/mock/dist-oc9-build-43995-14591/root/chroot_tmpdir/scmroot/perl-libwww-perl
Cloning into '/var/lib/mock/dist-oc9-build-43995-14591/root/chroot_tmpdir/scmroot/perl-libwww-perl'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/perl-libwww-perl
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0a3d92f import perl-libwww-perl-6.67-3.tl4