anchor.diff:    """A unique identifier for the client performing the mutation."""
     clientMutationId: String
   
  -  """The updated ProjectCard."""
  +  """
  +  The updated ProjectCard.
  +  
  +  **Upcoming Change on 2019-01-01 UTC**
  +  **Description:** Type for `projectCard` will change from `ProjectCard!` to `ProjectCard`.
  +  **Reason:** In preparation for an upcoming change to the way we report
  +  mutation errors, non-nullable payload fields are becoming nullable.
  +  
  +  """
     projectCard: ProjectCard!
   }
   
  
positive.code: 
  """Autogenerated return type of MoveProjectCard"""
  type MoveProjectCardPayload {
    """The new edge of the moved card."""
    cardEdge: ProjectCardEdge!
  
    """A unique identifier for the client performing the mutation."""
  
negative.code:   project column at a time. The column field will be null if the card is created
    in a pending state and has yet to be associated with a column. Once cards are
    associated with a column, they will not become pending in the future.
    
    """
    column: ProjectColumn
  
  