Key legal question
Whether the brokerage agreement included a reinforced exclusivity clause prohibiting the seller's direct sales without the broker and entitling commission in such cases.
Extracted holding
The appeal failed because the cantonal court's finding that no reinforced exclusivity clause had been agreed was based on a factual assessment of the parties' true intent, which is not reviewable on appeal.
Extracted reasoning
Later conduct may reveal the parties' actual intent, but it cannot be used for trust-based interpretation as to what the parties were entitled to assume at contract formation. Since the cantonal court essentially relied on factual conclusions from post-contract conduct, the appellant's criticism could not be examined.