ConfigurableLanguageManager::updateLockedLanguageWeights() saves the configuration behind the locked language configuration entities using a raw config save.
This is the only instance in core of using ConfigFactory::loadMultiple() to return configuration objects that are then saved, therefore, this blocks.
Refactor to save the configuration entity. There is good test coverage in
Review and commit.
User interface changes
Beta phase evaluation
|Issue category||Bug because configuration entities should not be updated using the raw config API|
|Issue priority||Critical because it blocks.|
|Disruption||Zero disruption - internal refactoring only.|