ChildNode not found but it exists

[GoogleCodeExporter]

What steps will reproduce the problem?
1. var n:IXMLNode; 
2. n.ParentNode.ChildNodes.IndexOf(n)=-1
3.

What is the expected output? What do you see instead?

n.ParentNode.ChildNodes.IndexOf(n)<>-1

What version of the product are you using? On what operating system?
product OMNIXML.pas  r22 by mremec on Mar 27, 2014 

Please provide any additional information below.

To correct the error all typecasts of IXMLNode to Pointer must be changed
by typecasts IXMLNode as IUnknown to Pointer as shown below:

function TXMLCustomList.Add(const XMLNode:IXMLNode):integer;
begin
  Result:=FList.Add(pointer(XMLNode as IUnknown));
  XMLNode._AddRef;
end;

Original issue reported on code.google.com by [email protected] on 18 Nov 2014 at 8:29