Add setDefaultTranslationEnforced to \Drupal\Core\TypedData\TranslatableInterface

Problem/Motivation

In 🐛 $entity->isDefaultTranslation() behaves incorrectly when changing default translation, causing file/image field usage to be set to zero, causing files to be deleted Fixed we added a deprecation if \Drupal\Core\TypedData\TranslatableInterface does not have a setDefaultTranslationEnforced method. We need to add it to the interface.

Proposed resolution

Add the method to the interface to 11.x before 11.0.0 is released and remove the deprecation.

Remaining tasks

User interface changes

API changes

Data model changes

Release notes snippet