ShapeAnalysis_Wire bug

Hello Team,
Looks like there is a bug in code:

Standard_Boolean ShapeAnalysis_Wire::CheckConnected(...)
{
...
TopoDS_Vertex V1 = sae.LastVertex (E1);
TopoDS_Vertex V2 = sae.FirstVertex (E2);
...
if (V1.IsSame(V2)) return Standard_False;
...
}

Am I right?
Thanks.
With respects, Author.