Change record status: 
Project: 
Introduced in branch: 
2.0.x
Introduced in version: 
2.0.0
Description: 

Because we can now also group config.

Old code

  $group->getContentByEntityId($plugin_id, $entity_id);

New code

  $group->getRelationshipsByEntity($entity);
  $group->getRelationshipsByEntity($entity, $plugin_id);
Impacts: 
Module developers