## Bug description

When you create a trend with two lines, one of which is say $pageview with a filter of browser = chrome and the other is ALSO $pageview but a different filter.

If you click on any the line you get the same users in the persons modal, even if you switch the trend line toggle in the modal.

## How to reproduce

1. Create a new trend
2. Add a $pageview trendline, and another $pageview trendline with a subfilter
3. Click on any of the lines
4. Open the persons modal and switch between the trend lines in the persons modal

## Environment

- [x] PostHog Cloud
- [ ] self-hosted PostHog (ClickHouse-based), version/commit: _please provide_
- [ ] self-hosted PostHog (Postgres-based, legacy), version/commit: _please provide_

## Additional context



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

posthog/api/utils.py
result = request.get_full_path()
    if not result:
        return None
    new_offset = offset - page_size if mode == PaginationMode.previous else offset + page_size
    if new_offset < 0:
        return None
    if "offset" in result:
        result = result[1:]
        result = result.replace(f"offset={offset}", f"offset={new_offset}")
    else:
        result = request.build_absolute_uri("{}{}offset={}".format(result, "&" if "?" in result else "?", new_offset))
    return result
def get_token(data, request) -> Optional[str]: