Question juridique clé
Whether the cantonal court could examine the pension start date even though it was not contested in the objection proceedings.
Solution extraite
Yes. The pension start date was part of the reasoning, not an independent final object of the objection decision, so it was not barred by finality.
Motifs extraits
Only the actually contested legal relationship becomes binding. Elements used merely to justify the decision, such as pension start, do not attain independent res judicata merely because they were not challenged in objection proceedings.