[wp-trac] [WordPress Trac] #38903: Prevent `update_option()` from updating when the old and new values contain identical objects.

[WordPress Trac]

#38903: Prevent `update_option()` from updating when the old and new values contain
identical objects.
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 Reporter:  peterwilsoncc                     |       Owner:
     Type:  defect (bug)                      |      Status:  new
 Priority:  normal                            |   Milestone:  4.8
Component:  General                           |     Version:  2.0
 Severity:  normal                            |  Resolution:
 Keywords:  early has-patch needs-unit-tests  |     Focuses:
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Comment (by salcode):

 Test written at #wcus 2016 contributor day

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Ticket URL: <https://core.trac.wordpress.org/ticket/38903#comment:2>
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