[wp-trac] [WordPress Trac] #59496: Duotone undefined index/array key warning

[WordPress Trac]

#59496: Duotone undefined index/array key warning
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 Reporter:  jacobcassidy                         |       Owner:  (none)
     Type:  defect (bug)                         |      Status:  new
 Priority:  normal                               |   Milestone:  6.5
Component:  Editor                               |     Version:  6.3
 Severity:  normal                               |  Resolution:
 Keywords:  has-patch has-testing-info has-      |     Focuses:
  unit-tests                                     |
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Comment (by Rahmohn):

 Hello @jacobcassidy and @hellofromTonya,

 I did a small refactoring in the code change suggested by @jacobcassidy.
 Also, I added a unit test.

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Ticket URL: <https://core.trac.wordpress.org/ticket/59496#comment:4>
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