[Bug] Translating app reserved metafields throws "Metafield not found"

[ocastx]

Hi,

we are using metafields to store data and on the other end read it from a headless Storefront. Using a metafield definition we give permission to read the metafield using the storefront API: 

{
    "data": {
        "metafieldDefinitionCreate": {
            "createdDefinition": {
                "id": "gid://shopify/MetafieldDefinition/3456",
                "validationStatus": "ALL_VALID",
                "name": "Test text",
                "namespace": "app--123--hello",
                "key": "test-url",
                "access": {
                    "storefront": "PUBLIC_READ",
                    "admin": "MERCHANT_READ_WRITE"
                }
            },
            "userErrors": []
        }
    }
}

After setting a metafield value, we want to also translate this value to different languages, using the following mutation: 

mutation translationsRegister($resourceId: ID!, $translations: [TranslationInput!]!) {
  translationsRegister(resourceId: $resourceId, translations: $translations) {
    translations {
        key
        locale
        outdated
        value
    }
    userErrors {
      field
      message
    }
  }
}

Variables: 

{
  "resourceId": "gid://shopify/Metafield/3456",
  "translations": [
    {
      "key": "value",
      "locale": "fr",
      "translatableContentDigest": "some-hash",
      "value": "Translated value"
    }
  ]
}

But all we get is that the metafield was not found: 

{
    "data": {
        "translationsRegister": {
            "translations": null,
            "userErrors": [
                {
                    "field": [
                        "resourceId"
                    ],
                    "message": "Resource gid://shopify/Metafield/3456 does not exist"
                }
            ]
        }
    }
}

When removing the app reserved namespace, everything is working as expected. Is this a known bug? 

[ocastx · Accepted solution]

This has been fixed. Thank you!