def outbox_for(self, user):
        return self.filter(
            sender=user,
            sender_deleted_at__isnull=True,
        )
Test update detection for multiple name matches with parent
dataset/ETHPy150Open amarandon/smeuhsocial/apps/messages/models.py/MessageManager.outbox_for--crossover with--dataset/ETHPy150Open sahana/eden/modules/unit_tests/s3db/org.py/OrgDeduplicationTests.testMultipleNameMatchesWithParentItemMismatch