This actually seems to be a Python problem as the duplication happens while the recipe is copied using copy.deepcopy(). Minimal reproducer: import copy, xml.dom.minidom node = xml.dom.minidom.parseString("<parent><child/></parent>") print node.toxml() print copy.deepcopy(node).toxml() python-2.7.1-7.fc15.x86_64 <?xml version="1.0" ?><parent><child/></parent> <?xml version="1.0" ?><parent><child/><child/></parent><parent><child/><child/></parent> python-2.6.6-20.el6.x86_64 <?xml version="1.0" ?> <parent><child/></parent> <?xml version="1.0" ?> <parent><child/></parent> Reassigning to python component.
Any updates here?
This seems to be this upstream bug: http://bugs.python.org/issue10131 As notes there, a workaround is to use doc.cloneNode(True) import copy, xml.dom.minidom node = xml.dom.minidom.parseString("<parent><child/></parent>") print node.toxml() print copy.deepcopy(node).toxml() print node.cloneNode(True).toxml() python-2.7.1-5.fc15.x86_64 <?xml version="1.0" ?><parent><child/></parent> <?xml version="1.0" ?><parent><child/><child/></parent><parent><child/><child/></parent> <?xml version="1.0" ?><parent><child/></parent> python-2.6.6-9.el6.x86_64 <?xml version="1.0" ?> <parent><child/></parent> <?xml version="1.0" ?> <parent><child/></parent> <?xml version="1.0" ?> <parent><child/></parent>
Created attachment 515848 [details] mganisin-Issue10131-Python-2.7.2.patch I think I found the issue, appended patch should fix that. Further explanation is attached in upstream bug. Please read http://bugs.python.org/issue10131 for details if you are interested.
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