Bug description

Please describe.
If this affects the front-end, screenshots would be of great help.

How to reproduce

1. Go to any funnel
2. Add exclusion step
3. Funnel and correlation analysis breaks

Environment

• 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!