gh-XXXXX: Fix xml.dom.pulldom dropping events produced by parser.close()

getEvent() returned None immediately after parser.close() without
checking if close() generated new SAX events, silently dropping
trailing events like END_ELEMENT.

Author: zetzschest

Lib/xml/dom/pulldom.py

@@ -249,6 +249,8 @@ def getEvent(self):
             buf = self.stream.read(self.bufsize)
             if not buf:
                 self.parser.close()
+                if self.pulldom.firstEvent[1]:
+                    break
                 return None
             self.parser.feed(buf)
         rc = self.pulldom.firstEvent[1][0]