If this project includes a feature flag, please complete all
upgrade/downgrade testing as part of this ticket.
1. Test how the feature behaves when upgrading FCV turns the
feature on
2. Test that the correct behavior occurs when downgrading FCV
completely and then upgrading FCV completely
3. Test that the correct feature behavior occurs if the FCV downgrade
fails after only reaching the `downgrading` FCV state and then FCV is
fully upgraded again
4. Test that anything added by this project to the setFCV command
must be idempotent/retryable.