Questão jurídica principal
Whether the appeal against the cantonal cassation ruling was admissible despite its interlocutory nature.
Decisão extraída
The ruling was an incidental decision and did not cause irreparable harm or justify immediate review to avoid lengthy and costly evidence proceedings; the appeal was inadmissible.
Fundamentação extraída
Under Arts. 93(1) and 117 BGG, an interlocutory decision is only appealable if irreparable prejudice is shown or if immediate admission would lead to a final decision avoiding extensive evidence. Those conditions were not met.