## Issues
- Not safe to call the parent callback from the render function. It must be called from an effect or
- `onHidden` is only called when blacklisted, but it can also be hidden from other circumstances.
- While those other circumstances doesn't apply for FYP (the first client that relies on `onHidden`, it's incorrect from a code perspective, unless it is renamed to `onBlacklisted`.
## Change
- Move the callback execution into an effect.
- Ensure `onHidden` is for all situations that it is hidden.
8c06dab10f