[wp-trac] [WordPress Trac] #41148: Test for ticket 39875 can throw PHP error

[WordPress Trac]

#41148: Test for ticket 39875 can throw PHP error
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 Reporter:  schlessera    |      Owner:
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  Media         |    Version:  4.8
 Severity:  normal        |   Keywords:
  Focuses:                |
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 The test that was written for #39875 can throw a PHP error under certain
 circumstances: `Undefined index: sizes`.

 The problem arises when then `wp_generate_attachment_metadata()` call does
 not return the proper array data. As the preview path generation directly
 access a specific array index, this throws a PHP error.

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Ticket URL: <https://core.trac.wordpress.org/ticket/41148>
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