SMESH::GetGEOMGen( aGeomGroup )->GetIGroupOperations();
aGroupMainShape = anOp->GetMainShape( aGeomGroup );
// aGroupMainShape is an existing servant => GEOM_Object_var not GEOM_Object_wrap
SMESH::GetGEOMGen( aGeomGroup )->GetIGroupOperations();
aGroupMainShape = anOp->GetMainShape( aGeomGroup );
// aGroupMainShape is an existing servant => GEOM_Object_var not GEOM_Object_wrap