bokeh-server in verbose mode

2015-08-19 17:39:56,675:INFO:tornado.access:200 GET /bokeh/userinfo/ (127.0.0.1) 2.47ms
2015-08-19 17:39:56,716:INFO:tornado.access:200 POST /bokeh/doc/ (127.0.0.1) 2.84ms
2015-08-19 17:39:56,719:INFO:tornado.access:200 GET /bokeh/getdocapikey/7fe36a4f-1a61-4bb7-8b10-79ce6276de61 (127.0.0.1) 1.21ms
2015-08-19 17:39:56,736:INFO:tornado.access:200 POST /bokeh/bb/7fe36a4f-1a61-4bb7-8b10-79ce6276de61/gc (127.0.0.1) 14.22ms
2015-08-19 17:39:56,742:INFO:tornado.access:200 GET /bokeh/bb/7fe36a4f-1a61-4bb7-8b10-79ce6276de61/ (127.0.0.1) 3.26ms
2015-08-19 17:39:56,830:ERROR:bokeh.server:Exception on /bokeh/bb/7fe36a4f-1a61-4bb7-8b10-79ce6276de61/bulkupsert [POST]
Traceback (most recent call last):
  File "/home/loic/Code/anaconda/lib/python3.4/site-packages/flask/app.py", line 1817, in wsgi_app
    response = self.full_dispatch_request()
  File "/home/loic/Code/anaconda/lib/python3.4/site-packages/flask/app.py", line 1477, in full_dispatch_request
    rv = self.handle_user_exception(e)
  File "/home/loic/Code/anaconda/lib/python3.4/site-packages/flask/app.py", line 1381, in handle_user_exception
    reraise(exc_type, exc_value, tb)
  File "/home/loic/Code/anaconda/lib/python3.4/site-packages/flask/_compat.py", line 33, in reraise
    raise value
  File "/home/loic/Code/anaconda/lib/python3.4/site-packages/flask/app.py", line 1475, in full_dispatch_request
    rv = self.dispatch_request()
  File "/home/loic/Code/anaconda/lib/python3.4/site-packages/flask/app.py", line 1461, in dispatch_request
    return self.view_functions[rule.endpoint](**req.view_args)
  File "/home/loic/Code/anaconda/lib/python3.4/site-packages/bokeh/server/views/bbauth.py", line 21, in wrapper
    return func(*args, **kwargs)
  File "/home/loic/Code/anaconda/lib/python3.4/site-packages/bokeh/server/views/backbone.py", line 64, in bulk_upsert
    clientdoc.load(*data, events='none', dirty=True)
  File "/home/loic/Code/anaconda/lib/python3.4/site-packages/bokeh/document.py", line 182, in load
    model = cls.load_json(obj_attrs)
  File "/home/loic/Code/anaconda/lib/python3.4/site-packages/bokeh/plot_object.py", line 177, in load_json
    instance.update(**attrs)
  File "/home/loic/Code/anaconda/lib/python3.4/site-packages/bokeh/plot_object.py", line 290, in update
    setattr(self, k, v)
  File "/home/loic/Code/anaconda/lib/python3.4/site-packages/bokeh/properties.py", line 326, in __setattr__
    (name, self.__class__.__name__, text, nice_join(matches)))
AttributeError: unexpected attribute 'callback' to DataRange1d, possible attributes are end, name, names, range_padding, renderers, session, start or tags
2015-08-19 17:39:56,834:ERROR:tornado.access:500 POST /bokeh/bb/7fe36a4f-1a61-4bb7-8b10-79ce6276de61/bulkupsert (127.0.0.1) 8.71ms