Using UnplacedScaledShape to implement G4ReflectedSolid gives negative safety

Converting Geant4 geometries to be used in VecGeom navigation, we (Sandro) chose to implement some reflections using UnplacedScaledShape:

if (auto p = dynamic_cast<G4ReflectedSolid const *>(shape)) {

    auto t = p->GetDirectTransform3D();

    if (t.getTranslation().mag2() == 0. && (t.xx() == -1. || t.yy() == -1. || t.zz() == -1.))

Unknown macro: {       VUnplacedVolume *referenced_shape = Convert(p->GetConstituentMovedSolid());       unplaced_volume = GeoManager}

...

  }

When it's implementation of safety is called, a point is transformed to the coordinate system of the original solid.  But when transforming the answer back, the result multiplies by fSclMaster which is -1 (that's likely for all pure reflections).

And the resulting value becomes negative, which is not correct.

I observed this only for ScaledShapeImplementation::SafetyToOut, as I call only this, but it seems clear that it applies also to ScaledShapeImplementation::SafetyToIn.