[wp-trac] [WordPress Trac] #39883: Code hooking on `image_downsize` can no longer assume the file is an image

[WordPress Trac]

#39883: Code hooking on `image_downsize` can no longer assume the file is an image
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 Reporter:  stephdau      |       Owner:  mikeschroder
     Type:  defect (bug)  |      Status:  assigned
 Priority:  normal        |   Milestone:  4.7.5
Component:  Media         |     Version:  4.7
 Severity:  normal        |  Resolution:
 Keywords:  needs-patch   |     Focuses:
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Changes (by swissspidy):

 * keywords:   => needs-patch
 * milestone:  4.7.4 => 4.7.5


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Ticket URL: <https://core.trac.wordpress.org/ticket/39883#comment:16>
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