Hello,
Sometime between yesterday and today, my error logs have been flooded by ValueError exception like the one below.
```
Traceback (most recent call last):
File "dikantenyvaovao.py", line 346, in on_pubmsg
self.translations.process_interwiki(lang, Page)
File "dikantenyvaovao.py", line 505, in process_interwiki
if Page.isRedirectPage():
File "/usr/local/lib/python2.7/dist-packages/pywikibot-2.0rc1.post2-py2.7.egg/pywikibot/page.py", line 633, in isRedirectPage
return self.site.page_isredirect(self)
File "/usr/local/lib/python2.7/dist-packages/pywikibot-2.0rc1.post2-py2.7.egg/pywikibot/site.py", line 2542, in page_isredirect
self.loadpageinfo(page)
File "/usr/local/lib/python2.7/dist-packages/pywikibot-2.0rc1.post2-py2.7.egg/pywikibot/site.py", line 2432, in loadpageinfo
inprop=inprop)
File "/usr/local/lib/python2.7/dist-packages/pywikibot-2.0rc1.post2-py2.7.egg/pywikibot/site.py", line 1587, in _generator
gen = gen_class(type_arg, site=self, **args)
File "/usr/local/lib/python2.7/dist-packages/pywikibot-2.0rc1.post2-py2.7.egg/pywikibot/data/api.py", line 2457, in __init__
QueryGenerator.__init__(self, prop=prop, **kwargs)
File "/usr/local/lib/python2.7/dist-packages/pywikibot-2.0rc1.post2-py2.7.egg/pywikibot/data/api.py", line 2040, in __init__
if MediaWikiVersion(self.site.version()) < MediaWikiVersion('1.21'):
File "/usr/lib/python2.7/distutils/version.py", line 40, in __init__
self.parse(vstring)
File "/usr/local/lib/python2.7/dist-packages/pywikibot-2.0rc1.post2-py2.7.egg/pywikibot/tools/__init__.py", line 331, in parse
raise ValueError('Invalid version number "{0}"'.format(vstring))
ValueError: Invalid version number "1.27.0-wmf.1"
```
Also, trying to update from the Gerrit fails