$ git clone -n https://gitee.com/src-opencloudos-rpms/perl-Mail-SPF.git /var/lib/mock/dist-oc9-build-49141-14595/root/chroot_tmpdir/scmroot/perl-Mail-SPF
Cloning into '/var/lib/mock/dist-oc9-build-49141-14595/root/chroot_tmpdir/scmroot/perl-Mail-SPF'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/perl-Mail-SPF
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 902bdf6 import perl-Mail-SPF-2.9.0-2.tl4