## Bug description

Monthly Active Users metric seems wrong when choosing "# Number" as chart type.

Number: 
![image](https://user-images.githubusercontent.com/513669/201980874-be7d9c0d-5c9c-4c1e-955c-ea4143c84061.png)

Line chart: 
![image](https://user-images.githubusercontent.com/513669/201980986-b17af929-84e5-4f6a-b7f8-23b7ac8bedbc.png)

**490 != 70**

## How to reproduce

1. Create a new insight using any event and the "Monthly active users" metric
2. Date range = This month + Grouped by = Day
3. Choose chart type as Number => remember value
4. Change chart type as Linear => check last data point

=> the 2 values do not match
=> in other words there's a diff between a total aggregation and an aggregation per bucket of time ?

## Environment

- [x] PostHog Cloud
posthog/queries/test/test_trends.py
# 
        sign_up_action, _ = self._create_events()
        cohort = Cohort.objects.create(
            team=self.team, name="a", groups=[{"properties": [{"key": "key", "value": "value", "type": "person"}]}]
        )
        action_response = Trends().run(
            Filter(
                data={
                    "actions": [{"id": sign_up_action.id, "math": "dau"}],
                    "properties": [{"key": "$current_url", "value": "ii", "operator": "icontains"}],
                    "breakdown": [cohort.pk, "all"],
                    "breakdown_type": "cohort",
                }
            ),
            self.team,
        )
        self.assertEqual(action_response[0]["count"], 0)
    def test_person_filtering_in_cohort_in_action(self):