$ git clone -n https://gitee.com/src-opencloudos-rpms/perl-IPC-SysV.git /var/lib/mock/dist-oc9-build-62573-16463/root/chroot_tmpdir/scmroot/perl-IPC-SysV
Cloning into '/var/lib/mock/dist-oc9-build-62573-16463/root/chroot_tmpdir/scmroot/perl-IPC-SysV'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/perl-IPC-SysV
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at adfafcd import perl-IPC-SysV-2.09-5.tl4