7
Just had a similar problem today, but I think I’ve solved it 
In my case the issue was that django was loading models.py twice and therefore trying to register the model for comment moderation twice as well. I fixed this by modifying the code from:
moderator.register(Post, PostModerator)
to:
if Post not in moderator._registry:
moderator.register(Post, PostModerator)
0
I imagine that CommentModerator (the superclass for PostModerator) is moderated by default?
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