Hacked `PloneHotfix20130618/in_portal.py` to work on Plone 2.5:
9 def wrapped_in_portal(self, url, context=None): 10 if url is None: # njj: ancient Plone 11 url = '' 12 url = re.sub('^[\x00-\x20]+', '', url).strip() 13 -> try: 14 # njj: ancient Plone 15 # return orig(self, url, context) 16 return orig(self, url)