$ git clone -n https://gitee.com/src-opencloudos-rpms/perl-Sub-Install.git /var/lib/mock/dist-oc9-build-71347-47546/root/chroot_tmpdir/scmroot/perl-Sub-Install
Cloning into '/var/lib/mock/dist-oc9-build-71347-47546/root/chroot_tmpdir/scmroot/perl-Sub-Install'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/perl-Sub-Install
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d94ed43 import perl-Sub-Install-0.929-1.tl4