set_calc_order in sagemanifold

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HI,

I noticed that the command

g.set_calc_order( p , n)

with p an expansion parameter and n the order has no effect on calculating the inverse metric, the determinant, the hodge_dual, it does work on things like the Ricci tensor or Ricci scalar.

I would like to ask why this is the case and if and how this can be changed such that the hodge_dual , inverse etc.. is also calculated only to the given order. I know that I could apply the truncate method, but that takes insanely long (longer than the computation without truncation)