$ git clone -n https://gitee.com/src-opencloudos-rpms/perl-CPAN.git /var/lib/mock/dist-oc9-build-43433-14591/root/chroot_tmpdir/scmroot/perl-CPAN
Cloning into '/var/lib/mock/dist-oc9-build-43433-14591/root/chroot_tmpdir/scmroot/perl-CPAN'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/perl-CPAN
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f7967c5 import perl-CPAN-2.34-4.tl4