Bug in Extrema_ExtPC

Hi, I'm encountering some computing problems with the class Extrema_ExtPC.

I use it to compute the projection of a point over a TopoDS_Wire.
I need the point but also the parameter of the projected point on the wire.

The way i use it is the next :

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TopoDS_Wire originalWire --> "CURV2_P_Wire.brep"

BRepAdaptor_CompCurve wireAdaptor(originalWire);

Extrema_ExtPC extremaPoint(point,wireAdaptor,1E-1);
if ( extremaPoint.IsDone() && extremaPoint.NbExt() > 0 )
{
const Standard_Integer iNbExtremaPoints = extremaPoint.NbExt();

for (Standard_Integer i=1;i {
bool bIsMin = extremaPoint.IsMin(i);
const Extrema_POnCurv& currentPOnCurv = extremaPoint.Point(i);
const gp_Pnt& currentPoint = currentPOnCurv.Value();
const Standard_Real& currentParameter = currentPOnCurv.Parameter();
const Standard_Real& currentDistance = currentPoint.Distance(point);
}
}

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In this case the algorithm find 3 solutions :

Point 1 : IsMin=true; point=(1000.0,1000.0,0.0); param=0.0; distance=501.99
Point 2 : IsMin=false; point=(1986.98,1170.38,0.0); param=1.79; distance=1041.0
Point 3 : IsMin=false; point=(1000.0,1500.0,0.0); param=4.0; distance=1.99

The point 3 is the correct point and i expect this point to answer true to the IsMin method.
But it is not the case.
Moreover thanks to the distance it is easy to view that there is a problem.

Thanks to say if you can reproduce this case. Moreover if someone can explain me what represent the tolerance parameter. With the default constructor value 1E-10 in this case found only one solution (point 2 !!)

Thanks you.