$ git clone -n https://gitee.com/src-opencloudos-rpms/perl-IO-stringy.git /var/lib/mock/dist-oc9-build-50912-14595/root/chroot_tmpdir/scmroot/perl-IO-stringy
Cloning into '/var/lib/mock/dist-oc9-build-50912-14595/root/chroot_tmpdir/scmroot/perl-IO-stringy'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/perl-IO-stringy
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a2017ab import perl-IO-stringy-2.113-3.tl4