[Dune] jacobian construction

[Marco Cisternino]

Good morning duners,
I'm debuging my code and I have an incoherence between the corners stored in the geometry of the element and its jacobianTransposed: the code doesn't reproduce stored corners when it re-computes them by using the jacobian.
I'm using Dune 2.3.0 and ALUGrid 1.52b, setting a GeometryGrid with a element-by-element parametrization.
I would like to know where, when and how the jacobianTransposed is computed for the first time.

Thanks,
Marco