[wp-trac] [WordPress Trac] #48176: Deprecated get_all_category_ids() call can return incorrect results

[WordPress Trac]

#48176: Deprecated get_all_category_ids() call can return incorrect results
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 Reporter:  johnjamesjacoby  |      Owner:  (none)
     Type:  defect (bug)     |     Status:  new
 Priority:  low              |  Milestone:  Awaiting Review
Component:  Taxonomy         |    Version:  4.0
 Severity:  minor            |   Keywords:  2nd-opinion
  Focuses:                   |
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 In WordPress 4.0.0 and r28679, the `get_all_category_ids()` function was
 formally deprecated.

 Internally, it continues to rely on a cache key (`all_category_ids`) that
 will never be repopulated.

 This means anyone still using this deprecated function (yikes, I know...)
 on an installation with a persistent object cache is highly likely to be
 retrieving invalid/unexpected results.

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Ticket URL: <https://core.trac.wordpress.org/ticket/48176>
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