Section 103 provides that, although no second appeal exists on a factual question when such an appeal is before the High Court, and the evidence is sufficient, the Court may decide any genuine issue necessary for the disposition of the appeal.
The second appeal only gets permitted under two circumstances.
First, if the trial court has not decided the issue, the appellate court, or both.
Second, if the court took the wrong decision due to substantial questions of law, the provision allows a High Court to rule on a factual issue in certain circumstances.