Use right class when cloning nodes in lxml, fix issue 178

Author: James Graham

html5lib/tests/test_parser.py

@@ -142,7 +142,6 @@ def testFunc(self, innerHTML=innerHTML, input=input,
                     setattr(TestCase, testFunc.__name__,
                          testFunc)
                     break
-        break
 
     return unittest.TestLoader().loadTestsFromTestCase(TestCase)
 

html5lib/treebuilders/etree.py

@@ -131,7 +131,7 @@ def insertText(self, data, insertBefore=None):
                     self._element.text += data
 
         def cloneNode(self):
-            element = Element(self.name, self.namespace)
+            element = type(self)(self.name, self.namespace)
             for name, value in self.attributes.iteritems():
                 element.attributes[name] = value
             return element