Preprocess HTML breaks UTF-8 characters

Can you please double check if twig debug is enabled (see #3483397)?
Else please test https://git.drupalcode.org/project/klaro/-/merge_requests/14/diffs

Thank you for reporting.

Thanks @jan kellermann, both approaches do work: turning off twig debug solves it but also the MR!14. It still feels a bit uneasy, it's really strange why DOMDocument is causing such issues.

Its because of the (new) icons in the comments in twig debug…

@jurgenhaas should i merge MR14 then?

I'd say yes. Let's hope this doesn't come with unintended side effects.

Duplicate to #3483397