$ git clone -n https://gitee.com/src-opencloudos-rpms/firefox.git /var/lib/mock/dist-oc9-build-180498-80107/root/chroot_tmpdir/scmroot/firefox
Cloning into '/var/lib/mock/dist-oc9-build-180498-80107/root/chroot_tmpdir/scmroot/firefox'...
$ git fetch origin ?.#origin/oc9:KOJI_FETCH_HEAD
fatal: invalid refspec '?.#origin/oc9:KOJI_FETCH_HEAD'
$ git reset --hard ?.#origin/oc9
fatal: Cannot do hard reset with paths.