Strange messages in `on_message`

[pedrodevoto]

When I start tasks I see these kind of messages in the on_message handler, instead of the task events:

For example, if I invoke

dummy_task.delay(0)

Leek receives the following message:

message =  {'state': 'RECEIVED', 'content_type': 'application/json', 'delivery_tag': 394, 'body_length': 78, 'properties': {'correlation_id': '764d09db-493c-488c-b8d2-fbc12bb9764d'}, 'delivery_info': {'exchange': '', 'routing_key': 'celery'}}
body =  [[0], {}, {'callbacks': None, 'errbacks': None, 'chain': None, 'chord': None}]

Why is this happenning?