Hi team, I'm currently experiencing an issue with the List API using grpc to fetch relation tuples. The problem is that the API is returning tuples from other namespaces, which is unexpected. Here is a sample code snippet of what I am currently using :

Subject subject = {
            set: {
                namespace: subjectSetNamespace ?: "",
                'object: subjectSetObject ?: "",
                relation: subjectSetRelation ?: ""
            }
        };

ListRelationTuplesRequest_Query query = {
            namespace: namespace ?: "",
            relation: relation ?: "",
            subject: subject,
            'object: 'object ?: ""
        };
ListRelationTuplesRequest req = {
            query: query,
            page_token: pageToken ?: "",
            page_size: pageSize ?: 0
        };

ListRelationTuplesResponse|grpc:Error res = self.readClient->ListRelationTuples(req);