## Bug description

See [this graph (internal link)](https://app.posthog.com/insights?insight=TRENDS&actions=%5B%7B%22id%22%3A4912%2C%22math%22%3A%22dau%22%2C%22name%22%3A%22Discovered%20Learning%22%2C%22type%22%3A%22actions%22%2C%22order%22%3A0%2C%22properties%22%3A%5B%7B%22key%22%3A%22realm%22%2C%22type%22%3A%22person%22%2C%22value%22%3A%5B%22cloud%22%5D%2C%22operator%22%3A%22exact%22%7D%5D%2C%22math_property%22%3Anull%7D%2C%7B%22id%22%3A7307%2C%22math%22%3A%22total%22%2C%22name%22%3A%22Insights%20Error%20or%20Timeout%20-%20Cloud%22%2C%22type%22%3A%22actions%22%2C%22order%22%3A1%2C%22properties%22%3A%5B%5D%2C%22math_property%22%3Anull%7D%5D&display=ActionsLineGraph&formula=B%2FA&interval=week&date_from=-90d&filter_test_accounts=true&properties=%5B%5D&breakdown=realm&breakdown_type=person#fromItem=190864&fromItemName=%23%20Errors%20Seen%20%2F%20Activated%20User%20-%20Cloud&fromDashboard=3346)

Using formulas + break down doesn't work.

## Expected behavior

Should work.

## How to reproduce

1.
2.
3.

## Environment

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

## Additional context



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

ee/clickhouse/sql/trends/breakdown.py
BREAKDOWN_QUERY_SQL = """
SELECT groupArray(day_start) as date, groupArray(count) as data, breakdown_value FROM (
    SELECT SUM(total) as count, day_start, breakdown_value FROM (
        SELECT * FROM (
            SELECT
            toUInt16(0) AS total,
            {interval}(toDateTime(%(date_to)s) - number * %(seconds_in_interval)s) as day_start,
            breakdown_value from numbers(%(num_intervals)s) as main
            CROSS JOIN
                (
                    SELECT breakdown_value
                    FROM (
                        SELECT %(values)s as breakdown_value
                    ) ARRAY JOIN breakdown_value
                ) as sec
            ORDER BY breakdown_value, day_start
            UNION ALL
            {inner_sql}
        )
    )
    GROUP BY day_start, breakdown_value
    ORDER BY breakdown_value, day_start
) GROUP BY breakdown_value
"""
BREAKDOWN_INNER_SQL = """
SELECT
    {aggregate_operation} as total,