[wp-trac] [WordPress Trac] #27194: wp.editPost does not allow removal of all terms for a taxonomy

[WordPress Trac]

#27194: wp.editPost does not allow removal of all terms for a taxonomy
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 Reporter:  maxcutler     |      Owner:
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  XML-RPC       |    Version:  3.8.1
 Severity:  normal        |   Keywords:
  Focuses:                |
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 `wp.newPost` and `wp.editPost` XML-RPC methods have a `terms` argument
 which allows setting of the terms associated with the post. This argument
 is an array with taxonomy names as keys and arrays of term IDs as values.

 If a taxonomy is explicitly supplied with an empty list of IDs, the
 expectation is that this would cause removal of all currently-associated
 terms in that taxonomy from the post.

 For example, if a post has 'Cat A' and 'Cat B' associated with it, passing
 `array( 'category' => array() )` should cause both of those categories to
 be unassociated with the post.

 This issue has existed since I wrote this code back in 3.4.

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Ticket URL: <https://core.trac.wordpress.org/ticket/27194>
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