[numerics] report original local solver error correctly
[numerics] report original local solver error correctly

radarsat1/siconos,radarsat1/siconos,fperignon/siconos,bremond/siconos,radarsat1/siconos,radarsat1/siconos,bremond/siconos,bremond/siconos,radarsat1/siconos,fperignon/siconos,siconos/siconos,siconos/siconos,bremond/siconos,fperignon/siconos,fperignon/siconos,bremond/siconos,siconos/siconos,fperignon/siconos,siconos/siconos