DATAREST-847 - RepositoryEntityCotroller.saveAndReturn(…) now uses save result.

Previously we handed the original entity to the AfterSaveEvent. This should work in most cases but actually repositories are allowed to return a completely different instance so that we now hand over the instance returned by the repository interaction to avoid potentially occurring issues.

Author: odrotbohm

spring-data-rest-webmvc/src/main/java/org/springframework/data/rest/webmvc/RepositoryEntityController.java

@@ -471,7 +471,7 @@ private ResponseEntity<ResourceSupport> saveAndReturn(Object domainObject, Repos
 
 		publisher.publishEvent(new BeforeSaveEvent(domainObject));
 		Object obj = invoker.invokeSave(domainObject);
-		publisher.publishEvent(new AfterSaveEvent(domainObject));
+		publisher.publishEvent(new AfterSaveEvent(obj));
 
 		PersistentEntityResource resource = assembler.toFullResource(obj);
 		HttpHeaders headers = headersPreparer.prepareHeaders(resource);