User Projection with SpatialData MultiPoint

[Christine-Schneidenwind]

Is there an existing issue for this?

• I have searched the existing issues

Product

Hot Chocolate

Describe the bug

I have enabled projection for my query and I have a MultiPoint (SpatialData) in my database

public class MyEntity 
{
    public Guid Id {get; set;}
    [Column(TypeName="geometry (multipoint)")]
    public MultiPoint MyMultiPoint { get; set;}
}

[UseProjection]
public static IQueryable<MyEntity> GetMyEntities([Service] MyDbContext dbContext) => dbContext.MyEntities;

I use an extensionType to wrap the multipoint to another type

public class GraphQLPoint
{
    public double X { get; set; }
    public double Y { get; set; }
}

[ExtendObjectType(typeof(MyEntity))]
public class MyEntityExtensions
{
  public IEnumerable<GraphQLPoint>? NewPoint([Service] IUnitOfWork unitOfWork, [Parent] MyEntity myEntity)
  {
             return myEntity.MyMultiPoint.Select(v => new GraphQLPoint {X = v.Coordinate.X, Y = v.Coordinate.Y});
  }
}

And I have an ObjectType

public class MyEntityObjectType : ObjectType<MyEntity>
{
    protected override void Configure(IObjectTypeDescriptor<Zone> descriptor)
    {
        descriptor.Field(t => t.MyMultiPoint).IsProjected()
         base.Configure(descriptor);
    }
}

Steps to reproduce

1. If I now run a query
   query {
   myEntities {

   newPoint
   {
   x
   }
   }
   }

The value at the extension method MyMultiPoint is always null, I I will get a NullReferenceException

[ExtendObjectType(typeof(MyEntity))]
public class MyEntityExtensions
{
  public IEnumerable<GraphQLPoint>? NewPoint([Service] IUnitOfWork unitOfWork, [Parent] MyEntity myEntity)
  {
             return myEntity.**MyMultiPoint**.Select(v => new GraphQLPoint {X = v.Coordinate.X, Y = v.Coordinate.Y});
  }
}

Relevant log output

No response

Additional Context?

No response

Version

13.0.5