Did the webhook body change for a first message?

I think the webhook body has changed when a user sends a message,

For the first message a user sends, I see the below. The body used to have the user’s message, but now it’s null. Also it’s a new part_type `language_detection_details`

Anyone else notice this?
 

"conversation_parts": {        "type": "conversation_part.list",        "conversation_parts": [          {            "type": "conversation_part",            "id": "2322",            "part_type": "language_detection_details",            "body": null,            "created_at": 1718102859,            "updated_at": 1718102859,            "notified_at": 1718102859,            "assigned_to": null,            "author": {              "id": "7189586",              "type": "bot",              "name": "Fin AI",              "email": "operator+wed4314z@intercom.io"            },            "attachments": [],            "external_id": null,            "redacted": false          }        ],        "total_count": 1      }    }  }