Patch application to add new app_role throws ODataError `Request contains a property with duplicate values.`

Hello,

I would like to add a new app_role called test to an app registration, I used following code, but got ODataError Request contains a property with duplicate values.:

from msgraph.generated.models.application import Application
from msgraph.generated.models.app_role import AppRole
from uuid import uuid4
# some other imports and client init ignored here, as not relevant

app_id = "an existing app id"
role_name = "test"
app_role = AppRole()
app_role.allowed_member_types = ["User", "Application"]
app_role.description = role_name
app_role.display_name = role_name
app_role.is_enabled = True
app_role.id = str(uuid4())
app_role.origin = "Application"
app_role.value = role_name
app = Application()
app.app_roles = [app_role]
# get() is OK
get_result = await client.applications.by_application_id(app_id).get()
# patch is KO
patch_result = await client.applications.by_application_id(app_id).patch(body=app)

The below command throws error: 'Request contains a property with duplicate values.' (code: DuplicateValue) after the internal command:
https://github.com/microsoftgraph/msgraph-sdk-python/blob/33cb15a452bd92b85ae62faaecc879761586237f/msgraph/generated/applications/item/application_item_request_builder.py#L123

Could you please give a help to explain what are the duplicate values, I checked the model of app_role, it should be OK:
https://github.com/microsoftgraph/msgraph-sdk-python/blob/main/msgraph/generated/models/app_role.py

Commencez par l’appel PATCH dans msgraph/generated/applications/item/application_item_request_builder.py vers la ligne 123 et examinez le modèle AppRole dans msgraph/generated/models/app_role.py. Reproduisez la requête à l’aide de l’exemple fourni et déterminez quelles valeurs la Microsoft Graph API traite comme des doublons. Le travail est considéré comme terminé lorsque la cause et le comportement PATCH requis sont clairement établis, avec un test de régression ou une mise à jour de la documentation si le dépôt en prend en charge un ou une.