IPAL22173 TC6.2.0: "Netgen1D-2D" algorithm doesn't work on "flight_solid.brep"

IPAL22173 TC6.2.0: "Netgen1D-2D" algorithm doesn't work on "flight_solid.brep"
    Treate a case where a valid mesh is computed anyhow while the algo reports errors

+  COMPERR_WARNING        = -10  //!< algo reports error but sub-mesh is computed anyway

+  bool IsKO()     { return myName != COMPERR_OK && myName != COMPERR_WARNING; }