Non trivial before save pointer clobber#2

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sud80 wants to merge 3 commits intomasterfrom

non_trivial_before_save_pointer_clobber

Commits on Jul 27, 2016

test case to check beforeSave changes clobbers fetched pointer fields
sud80
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propogate only changed fields to response.
sud80
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The goal of this comparision seems to be checking that the all returns the user correctly.
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