[wp-trac] [WordPress Trac] #21879: wp_count_posts() cache is not destroyed after post inserts and deletions

[WordPress Trac]

#21879: wp_count_posts() cache is not destroyed after post inserts and deletions
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 Reporter:  mark8barnes              |       Type:  defect (bug)
   Status:  new                      |   Priority:  normal
Milestone:  Awaiting Review          |  Component:  Cache
  Version:  3.4.2                    |   Severity:  normal
 Keywords:  has-patch needs-testing  |
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 `wp_count_posts()` caches its results, but that cache is not destroyed
 when posts are inserted, deleted, or transitioned. This can lead to
 incorrect counts.

 The attached patch fixes that (although it doesn't destroy the cache set
 when `$perm='readable'` in `wp_count_posts()`, which would be more complex
 as we wouldn't know the name of the key(s), though it could be done with
 `preg_match`).

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Ticket URL: <http://core.trac.wordpress.org/ticket/21879>
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