## Bug description

*Please describe.*  
- some datapoints show 0 but people will appear in modal

*If this affects the front-end, screenshots would be of great help.*  

## Expected behavior
- amount of people and datapoint should be the same


## How to reproduce

1. demo data clickhouse instance
2. go to retention trends for a day with some people


## Environment

- [ ] PostHog Cloud
- [ ] self-hosted PostHog, version/commit: _please provide_

## Additional context



#### *Thank you* for your bug report – we love squashing them!

posthog/queries/test/test_retention.py
("person2", self._date(2)),
                    ("person2", self._date(3)),
                    ("person3", self._date(5)),
                ],
                first_event,
            )
            self._create_events(
                [("person1", self._date(5)), ("person1", self._date(6)), ("person2", self._date(5)),], "$pageview",
            )
            target_entity = json.dumps({"id": first_event, "type": TREND_FILTER_TYPE_EVENTS})
            result = retention().run(
                RetentionFilter(
                    data={
                        "date_to": self._date(6, hour=6),
                        "target_entity": target_entity,
                        "returning_entity": {"id": "$pageview", "type": "events"},
                        "total_intervals": 7,
                    }
                ),
                self.team,
            )
            self.assertEqual(len(result), 7)
            self.assertEqual(
                self.pluck(result, "label"), ["Day 0", "Day 1", "Day 2", "Day 3", "Day 4", "Day 5", "Day 6"],
            )
            self.assertEqual(
                self.pluck(result, "values", "count"),
                [[2, 0, 0, 0, 0, 2, 1], [2, 0, 0, 0, 2, 1], [2, 0, 0, 2, 1], [2, 0, 2, 1], [0, 0, 0], [1, 0], [0]],
            )
        def test_retention_event_action(self):