[wp-trac] [WordPress Trac] #51251: Fix PHP notice when opening the edit image popup

[WordPress Trac]

#51251: Fix PHP notice when opening the edit image popup
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 Reporter:  Mista-Flo     |      Owner:  (none)
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  Media         |    Version:
 Severity:  normal        |   Keywords:  has-patch
  Focuses:                |
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 Hi there, I noticed a PHP notice on the last trunk version while playing
 with the media library.

 Steps to reproduce:

 - Activate Query Monitor plugin
 - Open your web console
 - Go to upload.php page on the backend
 - Select grid mode
 - Click on an attachment image
 - Click on 'Edit image' button
 - An edit image popup loads, and you should see a PHP notice saying that
 $msg->error is undefined

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Ticket URL: <https://core.trac.wordpress.org/ticket/51251>
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