Empty iterator causes (E0) Internal error

Building the following code causes
(E0) Internal error: Object reference not set to an instance of an object.
in Visual Studio 2015, RemObject Elements 9.1.99.2151
Notice the empty iterator.

namespace TestEmptyIterator;

interface

type
  TestIterator = public class
  private
    method GetIntegers: sequence of Integer; iterator; empty;
  protected
  public
    property Integers: sequence of Integer read GetIntegers;
  end;
  
implementation

end.

The following compiles and works fine:

namespace TestEmptyIterator;

interface

type
  TestIterator = public class
  private
    method GetIntegers: sequence of Integer; iterator;
  protected
  public
    property Integers: sequence of Integer read GetIntegers;
  end;
  
implementation

method TestIterator.GetIntegers: sequence of Integer;
begin
end;

end.

Thanks, logged as bugs://78005

bugs://78005 got closed with status fixed.