Panic in annotatedValue.Type under objectValue.WriteJSON

select t from (select 1) t

The issue is we're not tracking the reference 't' when set in the projection; when the incoming item in InitialProject is recycled, it recycles its values - which includes the value referenced in the projection.

(A star expansion isn't affected as we're copying - similarly adding an EXCLUDE clause referencing a non-existent member of 't' results in a copy and we avoid this too.)