[wp-trac] [WordPress Trac] #16673: _wp_translate_data() shouldn't set fields to empty values

[WordPress Trac]

#16673: _wp_translate_data() shouldn't set fields to empty values
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 Reporter:  scribu          |      Owner:
     Type:  defect (bug)    |     Status:  new
 Priority:  normal          |  Milestone:  Future Release
Component:  Administration  |    Version:
 Severity:  normal          |   Keywords:  has-patch
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 In _wp_translate_data(), there are 3 fields which are always set,
 regardless if their $_POST key wasn't set originally.

 This prevents the [https://core.trac.wordpress.org/browser/trunk/wp-
 includes/post.php#L2667 array_merge() in wp_update_post()] from working
 properly.

 Example: If a custom post type doesn't support excerpts, they will be
 overwritten if you set them through another method.

 In #13179, this was resolved by adding hidden inputs, which is kind of
 backwards.

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Ticket URL: <http://core.trac.wordpress.org/ticket/16673>
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