Using @Field("foo") with @Dbref breaking behavior.

@Document(collection="model")
class Model {
	@Id
	ObjectId id;
        
/**
* Currently only works without @Field annotation
*/
    @Field("foo")
	@DBRef
	Map<String, Foo> mapOfFoos ; //assume Foo is a class
}

public interface ModelDao extends MongoRepository<Model, ObjectId> {
}

public interface FooDao extends MongoRepository<Foo, ObjectId> {
}

...
Model model = new Model();
Map<String, Foo> mapOfFoos = new HashMap<String, Foo>();
Foo foo = new Foo()
fooDao.save(foo)
mapOfFoo("somestring", foo)
model.setMapOfFoos(mapOfFoo)
modelDao.save(model);
Model  retreivedModel = modelDao.findOne(model.getId());
//retreivedModel.getMapOfFoos() returns null
//EXPECTED (and previous behavior) retreivedModel.getMapOfFoos() not null