FMU shows parameters that should be hidden

[massimo ceraolo]

Consider model TestFMU below (annotations dropped)

model TestFMU 
  parameter Real K = 1;
  Modelica.Blocks.Interfaces.RealInput u;
  Modelica.Blocks.Interfaces.RealOutput;
  Modelica.Blocks.Math.Gain gain1(k = K / 2);
Modelica.Blocks.Math.Gain gain(k = 1);
equation
  connect(gain1.u, u);
  connect(gain1.y, gain.u);
  connect(gain.y, y);
end TestFMU;

I exported it as FMU-ME 2.0 and imported into Dymola the parameter window is as in the enclosed file screen.png.
I think the parameter gain1_k shouldn't be visible in the dialog box, since it is internally computed through a binding formula.