Hello,
Actually, outcomes of Trials are intended to be final, with no "double jeopardy". It is not generally acceptable to issue refusals over the outcomes of Trials, lest they become ongoing feuds. (Not to say they can't occur in other ways, mind.) This means that one Trial settles the issue at hand, and cannot be overturned by another (or the Clans could simply Refuse the Grand Refusal by resting, improving weapons, and challenging the Inner Sphere all over again).
You refuse votes and rulings, not Trial outcomes.
Thanks,
- Herb