Comment 12 for bug 1437407

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The big difference here is that in this case the thing you want to restrict the output on (domain_id) is not being returned as part of the collection....in all other filtering cases this is true
'''

Henry, can you make a example on "all other filtering cases this is true", I don't quite understand.

And no matter how we decide to implement it, I think we should write some unit test cases firstly to match expected behavior.