Provisional grades in submission query (GraphQL)

[arno_kamphuis]

In the REST API, when I call the "Get a single submission" or "List assignment submissions" endpoint with the option include[]=provisional_grades and include[]=full_rubric_assessment I get a nice list of all the provisional grades with the full rubric scores and comments. 

Now I want to do the same thing in the GraphQL API. At the moment I have the following query:

{
 submission(id: "1764997") {
   gradeMatchesCurrentSubmission
   submittedAt
   rubricAssessmentsConnection {
     nodes {
       score
       assessmentRatings {
         criterion {
           _id
           description
           outcome {
             _id
           }
         }
         comments
       }
     }
   }
 }
}

How can I add the extra option to include the provisional grades in this query?