get related object for all_objects

[malinich]

I have model

class Incident(PermanentModel):  
   petition = models.ForeignKey('Petition', related_name='incidents')  

class Petition(PermanentModel):
    .....

Now I need relate all objects

i = Incident.all_objects.get(pk=..)
i.petition  # <-- here in DB i have in WHERE clause ("petition"."removed" IS NULL)

I don't know how to solve this. In docs I no find the examples