Laminas API/Doctrine OneToMany return empty

Questions API Tools
1

Good Morning.
Could you help me with this problem, please.
API LAMINS,
Doctrine, in a OneToMany relationship, returns empty.
In relationship ManyToOne returns the entity.
I don’t understand why, and I can’t find how to change that behavior.

Here is the link to the example: https://github.com/nataliassa/LAMINAS

127.0.0.1:8080/user recebo:

{
    "_links": {
        "self": {
            "href": "http://127.0.0.1:8080/user?page=1"
        },
        "first": {
            "href": "http://127.0.0.1:8080/user"
        },
        "last": {
            "href": "http://127.0.0.1:8080/user?page=1"
        }
    },
    "_embedded": {
        "user": [
            {
                "id": 4,
                "username": "Natalia",
                "emails": {},
                "_links": {
                    "self": {
                        "href": "http://127.0.0.1:8080/user/4"
                    }
                }
            }
        ]
    },
    "page_count": 1,
    "page_size": 25,
    "total_items": 1,
    "page": 1
}

PS: The Email {} vazio;
When; 127.0.0.1:8080/user/4/email

{
    "_links": {
        "self": {
            "href": "http://127.0.0.1:8080/user/4/email?page=1"
        },
        "first": {
            "href": "http://127.0.0.1:8080/user/4/email"
        },
        "last": {
            "href": "http://127.0.0.1:8080/user/4/email?page=1"
        }
    },
    "_embedded": {
        "emails": [
            {
                "emailId": 2,
                "email": "natalia@gmail.com",
                "_embedded": {
                    "userId": {
                        "_links": {
                            "self": {
                                "href": "http://127.0.0.1:8080/user/4"
                            }
                        }
                    }
                },
                "_links": {
                    "self": {
                        "href": "http://127.0.0.1:8080/user/4/email"
                    }
                }
            }
        ]
    },
    "page_count": 1,
    "page_size": 25,
    "total_items": 1,
    "page": 1
}

OU dependendo da ‘max_depth’ => 1,
https://github.com/nataliassa/LAMINAS/blob/master/module/Users/config/module.config.php#L146

{
    "_links": {
        "self": {
            "href": "http://127.0.0.1:8080/user/4/email?page=1"
        },
        "first": {
            "href": "http://127.0.0.1:8080/user/4/email"
        },
        "last": {
            "href": "http://127.0.0.1:8080/user/4/email?page=1"
        }
    },
    "_embedded": {
        "emails": [
            {
                "emailId": 2,
                "email": "natalia@gmail.com",
                "_embedded": {
                    "userId": {
                        "id": 4,
                        "username": "Natalia",
                        "emails": {},
                        "_links": {
                            "self": {
                                "href": "http://127.0.0.1:8080/user/4"
                            }
                        }
                    }
                },
                "_links": {
                    "self": {
                        "href": "http://127.0.0.1:8080/user/4/email"
                    }
                }
            }
        ]
    },
    "page_count": 1,
    "page_size": 25,
    "total_items": 1,
    "page": 1
}

Do you help me, please.