[wp-trac] [WordPress Trac] #19205: Orphaned categories can be created by accident

[WordPress Trac]

#19205: Orphaned categories can be created by accident
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 Reporter:  dzver         |      Owner:
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  Taxonomy      |    Version:
 Severity:  minor         |   Keywords:
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 There are two ways to do that.

 1. You can work on category tree from two browser windows.
 - In window one, delete a category
 - In window two, add a child to the category that has been deleted.

 wp_insert_term needs to check if the parent exists.

 2. If you delete a couple of categories with bulk-delete, a third level
 child node can become orphan.

 wp_delete_term uses get_term to find the parent node and can retrieve
 cached data.

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Ticket URL: <http://core.trac.wordpress.org/ticket/19205>
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