@travi @JonasSchubert I'd suggest to tackle this in two steps:

1. Merge this fix to unblock folks asap.
2. Create a follow-up issue to refactor the option validation. IMO it's super brittle and we should clean it up properly so that we cannot run into these kinds of issue in the future. We should somehow encapsulate options, their validation and error messages better.

Originally posted by @fgreinacher in #364 (comment)