[FluidState][Compositional] setRelativeHumidity works on externaly passed FluidState object instead of on itself

Bug report

What happened / Problem description:

The method setRelativeHumidity needs an FluidState object reference as argument and sets the humidity on this object instead of on the object on which the method is called.

template <class FluidState>
void setRelativeHumidity(FluidState &fluidState, int phaseIdx, int compIdx, Scalar value)

What you expected to happen:

The method alters the FluidState object on which it is called and the method does not need a FluidState object. void setRelativeHumidity(int phaseIdx, int compIdx, Scalar value)

How to reproduce it (as minimally and precisely as possible): Source Code

Anything else we need to know?:

Is there a specific reason that this method does not work on the object itself?

Environment:

• Dune version:
• DuMux version:
• Others: