Bug description

The new funnels time conversion endpoint sometimes returns bins with negative time values. This makes it difficult to reflect accurate time conversion funnels data on the frontend. @Twixes @neilkakkar

Example CH localhost link to reproduce bug.

Request Payload

Expected behavior

No negative time bin values.

How to reproduce

1. Navigate to new funnels time conversion page. Make sure to turn on this FF: 4535-funnel-bar-viz
2. Add a few identical actions/events
3. Open up network requests to see the response to api/funnels

Environment

• PostHog Cloud
• self-hosted PostHog, version/commit: please provide

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