Ajax Multistep form face with LogicException: The database connection is not serializable after enabling locale modules and change the default languages to German

The Needs Review Queue Bot → tested this issue. It either no longer applies to Drupal core, or fails the Drupal core commit checks. Therefore, this issue status is now "Needs work".

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Relating to a meta issue.

This has now been fixed by 🐛 LogicException: The database connection is not serializable. Postponed: needs info