Missing bundle property on entity, entity_extract_ids

Problem/Motivation

This seems to be related to https://www.drupal.org/project/relation/issues/3331198 🐛 EntityMalformedException: Missing bundle property on entity of type relation. in entity_extract_ids() Needs review . On a production site with a complex database (which may include some corrupted data!) we are seeing a fatal error, @|EntityMalformedException: Propiedad de paquete que falta en la entidad de tipo node. in entity_extract_ids()@, when viewing certain entities with relations. Stack trace leads back to relation_add module.

Proposed resolution

Patch makes the module more robust to this error.