A puzzle concerning Q objects and Foreign Keys

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Music by Eric Matyas
https://www.soundimage.org
Track title: Ocean Floor

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Chapters
00:00 Question
01:31 Accepted answer (Score 2)
02:08 Answer 2 (Score 1)
02:48 Thank you

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Full question
https://stackoverflow.com/questions/1813...

Accepted answer links:
[Django join syntax]: http://docs.djangoproject.com/en/dev/top...

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Tags
#python #django #djangomodels #djangoqueryset #djangoq

#avk47