Questione giuridica chiave
Whether the cantonal court could limit review to changed circumstances under revision rules after a new disability application.
Decisione estratta
No. Revision-type rules apply only if there is a prior final merits decision based on proper factual assessment and income comparison; that was lacking here.
Motivazione estratta
The 1996 refusal was not a material disability assessment and contained no income comparison or established invalidity degree, so there was no comparable baseline for examining a changed situation.