If I'm to be the judge I'd address the case as a fresh case and I'll let everyone know the true storyline and I can't sentence her for a crime she didn't comit at first which she served and now she went on to commit that same crime, I'll set her free with conviction after all she's innocent.
Sometimes justice can be blind but not always.
That should be the simple justice on the matter. Justice is not blind if the matter is judged this way but it will be injustice if she is sent to jail for the second time while she actually committed the crime once. Such case should be handled with care as that is same person and not a different person. The earlier judgement was wrong against the alleged offender.