/tracks/ids documentation doesn't match the JSON response

[mase-git]

I don't know if this is the correct way to report a bug, I am sorry.

When I submit a GET request to /tracks/ids, I receive the following output:

   "artists": [
        {
          "external_urls": {
            "spotify": "https://open.spotify.com/artist/0k17h0D3J5VfsdmQ1iZtE9"
          },
          "href": "https://api.spotify.com/v1/artists/0k17h0D3J5VfsdmQ1iZtE9",
          "id": "0k17h0D3J5VfsdmQ1iZtE9",
          "name": "Pink Floyd",
          "type": "artist",
          "uri": "spotify:artist:0k17h0D3J5VfsdmQ1iZtE9"
        }
      ],

Meanwhile, the documentation defines the JSON response as:

"artists": [
        {
          "external_urls": {
            "spotify": "string"
          },
          "followers": {
            "href": "string",
            "total": 0
          },
          "genres": [
            "Prog rock",
            "Grunge"
          ],
          "href": "string",
          "id": "string",
          "images": [
            {
              "url": "https://i.scdn.co/image/ab67616d00001e02ff9ca10b55ce82ae553c8228\n",
              "height": 300,
              "width": 300
            }
          ],
          "name": "string",
          "popularity": 0,
          "type": "artist",
          "uri": "string"
        }
      ]

As you can see, there aren't genres and popularity fields, is this a problem due to documentation updating or from the Spotify API JSON response? In case, can we have an easy way to retrieves the genres of an artist in relation to its ID? Thank you