Questão jurídica principal
Whether the refusal to open an incidental procedure on the validation request was immediately challengeable
Decisão extraída
The appeal was inadmissible because the refusal to open the incidental procedure was only a procedural-organizational decision and caused no irreparable harm.
Fundamentação extraída
A federal appeal should normally be heard only once the case is finally decided; until the first-instance court rules on all claims and costs, no definitive prejudice is established.