Encode to hex.

Data can be really complex string, which can be bad for tag.

master/bt5/vifib_web/ExtensionTemplateItem/ViFiBWeb.py

@@ -221,7 +221,7 @@ def BrowserID_checkUserExistence(self):
   except KeyError:
     return False
   user = user_dict['login']
-  tag = '%s_user_creation_in_progress' % user
+  tag = '%s_user_creation_in_progress' % user.encode('hex')
   person_list = getUserByLogin(self.getPortalObject(), user)
   if len(person_list) == 0:
     if self.getPortalObject().portal_activities.countMessageWithTag(tag) == 0:

master/bt5/vifib_web/bt/revision

-393
\ No newline at end of file
+394
\ No newline at end of file