Key legal question
Whether the interlocutory cantonal judgment of 1 December 2009 could be challenged together with the final judgment.
Extracted holding
The interlocutory judgment could be reviewed together with the final judgment because it affected the outcome of the case on supplementary benefits.
Extracted reasoning
Under Art. 93(3) LTF, an incidental decision may be attacked with the final decision if it influences its content; the finding on the spouse's hypothetical income directly determined entitlement.