StringHelper.repeat( ">>", fetchSourceStack.size() ),
indexDefinition.getCollectionDefinition().getCollectionPersister().getRole()
);
final CollectionReference collectionReference = currentCollection();
final CollectionFetchableIndex indexGraph = collectionReference.getIndexGraph();
if ( indexType.isEntityType() || indexType.isComponentType() ) {
if ( indexGraph == null ) {
throw new WalkingException(
"CollectionReference did not return an expected index graph : " +