OneToOne inverse relation is Mapped as OneToMany

[homersimpsons]

SQL Schema:

CREATE TABLE `object` (
  `id` INT NOT NULL,
  PRIMARY KEY (`id`));
CREATE TABLE `media` (
  `id` INT NOT NULL,
  `object_id` INT NOT NULL,
  PRIMARY KEY (`id`),
  FOREIGN KEY fk_object(object_id)
   REFERENCES object(id));

TDBM generate a getter on the Object Entity named getMediasByObjectId(): AlterableResultIterator.

Here, because of the unique index on object_id, the relation is a OneToOne and not a OneToMany, so the generated method should have been getMediaByObjectId(): ?Media (notice the return type is nullable as TDBM can't ensure the existence)