Key legal question
Whether compliance with the three-month revision deadline under § 246 Ziff. 2 ZPO must be proven or merely made plausible.
Extracted holding
The deadline must be proven, not merely made plausible.
Extracted reasoning
The court held that knowledge triggering the deadline exists once there is secure knowledge, not necessarily full proof. Since Thurgau procedural law does not expressly regulate the standard of proof for timeliness, the same principle as under Zurich law applies: timely filing of the revision request must be shown by proof. This follows in particular from § 247 sentence 2 ZPO, which requires the revision petition to state the grounds and the evidence supporting them.