[wp-trac] [WordPress Trac] #22985: Edit thumbnail image only - loses all sub sizes in attachment meta

[WordPress Trac]

#22985: Edit thumbnail image only - loses all sub sizes in attachment meta
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 Reporter:  lewismcarey      |       Type:  defect (bug)
   Status:  new              |   Priority:  normal
Milestone:  Awaiting Review  |  Component:  Media
  Version:  3.5              |   Severity:  major
 Keywords:                   |
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 I have several additional image sizes in my theme. When I crop an image
 and save over only the thumbnail, all references to the various sub-sizes
 are lost and only the new thumbnail is referenced in
 _wp_attachment_metadata.

 Add an image to the media library.
 Output _wp_attachment_metadata.
 Edit the image (crop).
 Save only the thumbnail.
 Output the relevant _wp_attachment_metadata.

 This may be an issue with wp_save_image() not re-genarating subsizes from
 the original.
 I believe this to be different from Ticket #19889  as it appears to remove
 references to default sizes from media settings screen.

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Ticket URL: <http://core.trac.wordpress.org/ticket/22985>
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