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When I try to save a wikidata item the following exception occurs:

>>> import pywikibot
>>> d = pywikibot.getSite('test', 'wikidata').data_repository()
>>> i = pywikibot.page.ItemPage(d, 'Q6')
>>> i.save()
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "pywikibot/tools.py", line 310, in wrapper
    return method(*__args, **__kw)
  File "pywikibot/page.py", line 953, in save
    if not force and not self.botMayEdit():
  File "pywikibot/page.py", line 882, in botMayEdit
    templates = self.templatesWithParams()
  File "pywikibot/tools.py", line 310, in wrapper
    return method(*__args, **__kw)
  File "pywikibot/page.py", line 1256, in templatesWithParams
    templates = textlib.extract_templates_and_params(self.text)
  File "pywikibot/textlib.py", line 924, in extract_templates_and_params
    return extract_templates_and_params_regex(text)
  File "pywikibot/textlib.py", line 944, in extract_templates_and_params_regex
    thistxt = removeDisabledParts(text)
  File "pywikibot/textlib.py", line 294, in removeDisabledParts
    return toRemoveR.sub('', text)
TypeError: expected string or buffer
>>> type(i.text)
<type 'dict'>