Remove initial state from SimulationInput object

If I set an initial state for a SimulationInput object using

in = in.setInitialState(xInitial)

(see here), how can I remove the initial state again and start a simulation from t=0 with the same SimulationInput object?

Thanks in advance!

[Rahul Kumar]

Can you provide an example code of what you are trying to do. You can remove the InitialState by setting to to []

in.InitialState = [];