JSONDecodeError when incoming taskwarrior-stored task contains invalid characters

[coddingtonbear]

https://sentry.io/organizations/intheam/issues/1311552884/?project=210057&referrer=alert_email

JSONDecodeError: Invalid control character at: line 2 column 42 (char 43)
  File "django/core/handlers/exception.py", line 41, in inner
    response = get_response(request)
  File "django/core/handlers/base.py", line 187, in _get_response
    response = self.process_exception_by_middleware(e, request)
  File "django/core/handlers/base.py", line 185, in _get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "django/views/decorators/csrf.py", line 58, in wrapped_view
    return view_func(*args, **kwargs)
  File "rest_framework/viewsets.py", line 114, in view
    return self.dispatch(request, *args, **kwargs)
  File "inthe_am/taskmanager/viewsets/task.py", line 90, in dispatch
    return super(TaskViewSet, self).dispatch(request, *args, **kwargs)
  File "rest_framework/views.py", line 505, in dispatch
    response = self.handle_exception(exc)
  File "rest_framework/views.py", line 465, in handle_exception
    self.raise_uncaught_exception(exc)
  File "rest_framework/views.py", line 476, in raise_uncaught_exception
    raise exc
  File "rest_framework/views.py", line 502, in dispatch
    response = handler(request, *args, **kwargs)
  File "inthe_am/taskmanager/decorators.py", line 30, in wrapper
    result = f(self, *args, **kwargs)
  File "inthe_am/taskmanager/viewsets/task.py", line 140, in retrieve
    task = store.client.get_task(uuid=pk)[1]
  File "taskw/warrior.py", line 618, in get_task
    task_id, task = self._load_task(**kw)
  File "taskw/warrior.py", line 650, in _load_task
    task = self._get_task_objects('export', *search)
  File "inthe_am/taskmanager/taskwarrior_client.py", line 233, in _get_task_objects
    results = super(TaskwarriorClient, self)._get_task_objects(obj, *args)
  File "taskw/warrior.py", line 505, in _get_task_objects
    json = self._get_json(*args)
  File "inthe_am/taskmanager/taskwarrior_client.py", line 69, in _get_json
    return json.loads(self._execute(*args)[0])
  File "json/__init__.py", line 348, in loads
    return _default_decoder.decode(s)
  File "json/decoder.py", line 337, in decode
    obj, end = self.raw_decode(s, idx=_w(s, 0).end())
  File "json/decoder.py", line 353, in raw_decode
    obj, end = self.scan_once(s, idx)

[NGenetzky]

Might be related to #287 .