drupalSettings are reset upon adding a new comment, causing certain DrupalSettings to go missing such as the ones provided by entity_browser and field_group.
1. drush si -y
2. enable ajax_comments
3. Create article, and view article
4. in chrome console type: drupalSettings.
5. leave an ajax comment
6. in chrome console type: drupalSettings
Compare 6 to 4 and you will find several entries have disappeared, breaking editors, field_groups etc.
Postponed
1.0
Code
I think this is actually a core bug: https://www.drupal.org/project/drupal/issues/3401827 🐛 drupalSettingsLoader removes changes in DrupalSettings added in ajax requests Active