LogicException: Render context is empty, because render() was called outside of a renderRoot() or renderPlain() call

Merge request done. Awaiting feedback from the wider community and the maintainers.

In the meantime, here's a link to the patch file for composer patches:

https://git.drupalcode.org/project/smart_date/-/merge_requests/48.patch

Thanks for identifying this, and for providing a fix. I ended up tweaking the implementation a little to minimize the actual changes to the code, but the end result should be the same. Merged in.

Thanks @mandclu for the quick review and thanks for your efforts with this module. It has been really useful on a local theatre site we've recently launched.

Automatically closed - issue fixed for 2 weeks with no activity.