Genshi stream exception

[dread]

IndexError? exception in genshi.filters.i18n keeps popping up daily.

e.g.

...
Module ckan.controllers.authorization_group:28 in index
<<              items_per_page=20
               )
               return render('authorization_group/index.html')
       
           def read(self, id):
>>  return render('authorization_group/index.html')
Module ckan.lib.base:74 in render
<<      
           return cached_template(template_name, render_template, cache_key=cache_key, 
                                  cache_type=cache_type, cache_expire=cache_expire)
                                  #, ns_options=('method'), method=method)
>>  cache_type=cache_type, cache_expire=cache_expire)
Module pylons.templating:249 in cached_template
<<          return content
           else:
               return render_func()
>>  return render_func()
Module ckan.lib.base:63 in render_template
<<              stream = item.filter(stream)
               
               return literal(stream.render(method=method, encoding=None))
           
           if 'Pragma' in response.headers:
>>  return literal(stream.render(method=method, encoding=None))
Module genshi.core:183 in render
<<              method = self.serializer or 'xml'
               generator = self.serialize(method=method, **kwargs)
               return encode(generator, method=method, encoding=encoding, out=out)
       
           def select(self, path, namespaces=None, variables=None):
>>  return encode(generator, method=method, encoding=encoding, out=out)
Module genshi.output:57 in encode
<<          _encode = lambda string: string
           if out is None:
               return _encode(''.join(list(iterator)))
           for chunk in iterator:
               out.write(_encode(chunk))
>>  return _encode(''.join(list(iterator)))
Module genshi.output:339 in __call__
<<          for filter_ in self.filters:
                   stream = filter_(stream)
               for kind, data, pos in stream:
                   cached = cache_get((kind, data))
                   if cached is not None:
>>  for kind, data, pos in stream:
Module genshi.output:670 in __call__
<<          _gen_prefix = _gen_prefix().next
       
               for kind, data, pos in stream:
                   output = cache_get((kind, data))
                   if output is not None:
>>  for kind, data, pos in stream:
Module genshi.output:771 in __call__
<<          push_text = textbuf.append
               pop_text = textbuf.pop
               for kind, data, pos in chain(stream, [(None, None, None)]):
       
                   if kind is TEXT:
>>  for kind, data, pos in chain(stream, [(None, None, None)]):
Module genshi.output:586 in __call__
<<      def __call__(self, stream):
               prev = (None, None, None)
               for ev in stream:
                   if prev[0] is START:
                       if ev[0] is END:
>>  for ev in stream:
Module genshi.core:288 in _ensure
<<      # unchanged
           yield event
           for event in stream:
               yield event
>>  for event in stream:
Module genshi.core:288 in _ensure
<<      # unchanged
           yield event
           for event in stream:
               yield event
>>  for event in stream:
Module genshi.filters.transform:686 in _unmark
<<      def _unmark(self, stream):
               for mark, event in stream:
                   kind = event[0]
                   if not (kind is None or kind is ATTR or kind is BREAK):
>>  for mark, event in stream:
Module genshi.filters.transform:1145 in __call__
<<          :param stream: The marked event stream to filter
               """
               for mark, event in stream:
                   yield mark, event
                   if mark is ENTER:
>>  for mark, event in stream:
Module genshi.filters.transform:714 in __call__
<<          stream = iter(stream)
               next = stream.next
               for mark, event in stream:
                   if mark is None:
                       yield mark, event
>>  for mark, event in stream:
Module genshi.filters.transform:682 in _mark
<<      def _mark(self, stream):
               for event in stream:
                   yield OUTSIDE, event
>>  for event in stream:
Module genshi.core:288 in _ensure
<<      # unchanged
           yield event
           for event in stream:
               yield event
>>  for event in stream:
Module genshi.filters.transform:686 in _unmark
<<      def _unmark(self, stream):
               for mark, event in stream:
                   kind = event[0]
                   if not (kind is None or kind is ATTR or kind is BREAK):
>>  for mark, event in stream:
Module ckanext.googleanalytics.plugin:62 in download_adder
<<              (downloaded %s times)</span>'''
                   count = None
                   for mark, (kind, data, pos) in stream:
                       if mark and kind == START:
                           href = data[1].get('href')
>>  for mark, (kind, data, pos) in stream:
Module genshi.filters.transform:714 in __call__
<<          stream = iter(stream)
               next = stream.next
               for mark, event in stream:
                   if mark is None:
                       yield mark, event
>>  for mark, event in stream:
Module genshi.filters.transform:682 in _mark
<<      def _mark(self, stream):
               for event in stream:
                   yield OUTSIDE, event
>>  for event in stream:
Module genshi.core:288 in _ensure
<<      # unchanged
           yield event
           for event in stream:
               yield event
>>  for event in stream:
Module genshi.filters.transform:686 in _unmark
<<      def _unmark(self, stream):
               for mark, event in stream:
                   kind = event[0]
                   if not (kind is None or kind is ATTR or kind is BREAK):
>>  for mark, event in stream:
Module genshi.filters.transform:1175 in __call__
<<          """
               callable_value = hasattr(self.value, '__call__')
               for mark, (kind, data, pos) in stream:
                   if mark is ENTER:
                       if callable_value:
>>  for mark, (kind, data, pos) in stream:
Module genshi.filters.transform:714 in __call__
<<          stream = iter(stream)
               next = stream.next
               for mark, event in stream:
                   if mark is None:
                       yield mark, event
>>  for mark, event in stream:
Module genshi.filters.transform:682 in _mark
<<      def _mark(self, stream):
               for event in stream:
                   yield OUTSIDE, event
>>  for event in stream:
Module genshi.core:288 in _ensure
<<      # unchanged
           yield event
           for event in stream:
               yield event
>>  for event in stream:
Module genshi.filters.transform:686 in _unmark
<<      def _unmark(self, stream):
               for mark, event in stream:
                   kind = event[0]
                   if not (kind is None or kind is ATTR or kind is BREAK):
>>  for mark, event in stream:
Module genshi.filters.transform:1145 in __call__
<<          :param stream: The marked event stream to filter
               """
               for mark, event in stream:
                   yield mark, event
                   if mark is ENTER:
>>  for mark, event in stream:
Module genshi.filters.transform:714 in __call__
<<          stream = iter(stream)
               next = stream.next
               for mark, event in stream:
                   if mark is None:
                       yield mark, event
>>  for mark, event in stream:
Module genshi.filters.transform:682 in _mark
<<      def _mark(self, stream):
               for event in stream:
                   yield OUTSIDE, event
>>  for event in stream:
Module genshi.template.base:618 in _include
<<                      tmpl = self.loader.load(href, relative_to=event[2][0],
                                                   cls=cls or self.__class__)
                           for event in tmpl.generate(ctxt, **vars):
                               yield event
                       except TemplateNotFound:
>>  for event in tmpl.generate(ctxt, **vars):
Module genshi.template.base:618 in _include
<<                      tmpl = self.loader.load(href, relative_to=event[2][0],
                                                   cls=cls or self.__class__)
                           for event in tmpl.generate(ctxt, **vars):
                               yield event
                       except TemplateNotFound:
>>  for event in tmpl.generate(ctxt, **vars):
Module genshi.template.base:618 in _include
<<                      tmpl = self.loader.load(href, relative_to=event[2][0],
                                                   cls=cls or self.__class__)
                           for event in tmpl.generate(ctxt, **vars):
                               yield event
                       except TemplateNotFound:
>>  for event in tmpl.generate(ctxt, **vars):
Module genshi.template.base:605 in _include
<<          from genshi.template.loader import TemplateNotFound
       
               for event in stream:
                   if event[0] is INCLUDE:
                       href, cls, fallback = event[1]
>>  for event in stream:
Module genshi.template.markup:378 in _match
<<                      for event in self._match(self._flatten(template, ctxt,
                                                                  **vars),
                                                    ctxt, start=idx + 1, **vars):
                               yield event
>>  ctxt, start=idx + 1, **vars):
Module genshi.template.markup:327 in _match
<<                      break
       
               for event in stream:
       
                   # We (currently) only care about start and end events for matching
>>  for event in stream:
Module genshi.template.base:545 in _flatten
<<          while 1:
                   for kind, data, pos in stream:
       
                       if kind is START and data[1]:
>>  for kind, data, pos in stream:
Module genshi.filters.i18n:177 in _generate
<<                  msgbuf.append(*previous)
                       previous = None
                   for event in msgbuf.translate(gettext(msgbuf.format())):
                       yield event
                   if previous:
>>  for event in msgbuf.translate(gettext(msgbuf.format())):
Module genshi.filters.i18n:1029 in translate
<<                      )
       
               parts = parse_msg(string)
               parts_counter = {}
               for order, string in parts:
>>  parts = parse_msg(string)
Module genshi.filters.i18n:1143 in parse_msg
<<      if string:
               parts.append((stack[-1], string))
       
           return parts
>>  parts.append((stack[-1], string))
IndexError: list index out of range

[dread]

This appears to have gone away. No sign of it for two weeks on any OKF sites.