RuntimeError: OrderedDict mutated during iteration
(5 additional frame(s) were not displayed)
...
  File "flask/app.py", line 1936, in dispatch_request
    return self.view_functions[rule.endpoint](**req.view_args)
  File "brainzutils/ratelimit.py", line 262, in rate_limited
    return f(*args, **kwargs)
  File "listenbrainz/webserver/views/api_compat.py", line 99, in api_methods
    return get_token(request, data)
  File "listenbrainz/webserver/views/api_compat.py", line 159, in get_token
    output_format)
  File "listenbrainz/webserver/views/api_compat.py", line 374, in format_response
    for k in jsonData.keys():