#302 Calculated geometry data not updated for some sampledSurface sub-classes

[Bernhard Gschaider]

This problem revealed itself when working on https://sourceforge.net/p/openfoam-extend/ticketsswak4foam/231/
Seems that for some sub-classes of sampledSurface the demand driven data (for instance the face-magnitude) is not deleted with clearGeom() when the surface changes its size.

A patch with the fixes is attached