Accordion titles are double-escaped

First we need to find out, if this happens on the Drupal side or in foundation or both.

We found the problem! The twig file implicitly escapes the title through the "striptags" method. Adding "raw" will prevent this, but under specific circumstances, this might be a tiny security issue.

Did a little tweak and made some security tests, didn't find any way to break it anymore! Think it's also fine from the logical perspective, with the |render now:
Please note, that field.content is a markup object, so the |render ensures it's escaped as string and afterward, left tags are removed to not collide with the accordion.

Let's merge this.

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