## 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
_create_event(
                team=self.team,
                event="sign up",
                distinct_id="blabla",
                properties={"$some_property": "value", "$bool_prop": False},
            )
            _create_event(team=self.team, event="sign up", distinct_id="anonymous_id", properties={"$bool_prop": False})
            _create_event(team=self.team, event="sign up", distinct_id="blabla")
        with freeze_time(freeze_args[2]):
            _create_event(
                team=self.team,
                event="sign up",
                distinct_id="blabla",
                properties={"$some_property": "other_value", "$some_numerical_prop": 80},
            )
            _create_event(team=self.team, event="no events", distinct_id="blabla")
            
            _create_event(
                team=secondTeam, event="sign up", distinct_id="blabla", properties={"$some_property": "other_value"}
            )
        _create_action(team=self.team, name="no events")
        sign_up_action = _create_action(team=self.team, name="sign up")
        return sign_up_action, person
    def _create_breakdown_events(self):
        freeze_without_time = ["2020-01-02"]
        with freeze_time(freeze_without_time[0]):
            for i in range(25):
                _create_event(team=self.team, event="sign up", distinct_id="blabla", properties={"$some_property": i})
        _create_action(team=self.team, name="sign up")
    def _create_event_count_per_user_events(self):