Does not support clearing of relationships.

[geoidesic]

As per https://jsonapi.org/format/#crud-updating-to-one-relationships

This should be a valid request:

PATCH /articles/1/relationships/author HTTP/1.1
Content-Type: application/vnd.api+json
Accept: application/vnd.api+json

{
  "data": { "type": "people", "id": "12" }
}

Gives error: Impossible to generate condition with empty list of values for field (<Table>.id)