How do embeded documents without `id`?

[bm13kk]

i've spend a week already to find some solution for this.

i have next mongo models:

class Inner(EmbeddedDocument):
    meta = {
        'strict': False,
    }
    foo = fields.StringField()
    bar = fields.StringField()


class Outer(Document):
    meta = {
        "collection": "outer",
        "auto_create_index": False,
        'strict': False,
    }

    fizz = fields.StringField(unique=True)
    inner = fields.EmbeddedDocumentField(Inner, default=None)

Graphene nodes:

class InnerGraph(MongoengineObjectType):
    class Meta:
        model = Inner
        interfaces = (relay.Node,)


class OuterGraph(MongoengineObjectType):
    class Meta:
        model = Outer
        interfaces = (relay.Node,)

And graphene query

class Query(ObjectType):
    patient_list = MongoengineConnectionField(OuterGraph)
    
    # some resolver - removing it change nothing

Outer entity working fine, as expected, no problems.

But inner entity has id field (which is not exists in first place) ~And no other fields~ fixed.

Output in docs. Query -> Outer (edges, node) -> inner (type: InnerGraph)

InnerGraph
Fields
 id   ID!
The ID of the object.
Implements
 Node
An object with an ID (edited) 

Any ideas, how to make this combination work?