$ git clone -n https://gitee.com/src-opencloudos-rpms/perl-DBD-MySQL.git /var/lib/mock/dist-oc9-build-64069-16463/root/chroot_tmpdir/scmroot/perl-DBD-MySQL
Cloning into '/var/lib/mock/dist-oc9-build-64069-16463/root/chroot_tmpdir/scmroot/perl-DBD-MySQL'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/perl-DBD-MySQL
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d04f3b4 import perl-DBD-MySQL-4.050-6.tl4