[wp-trac] [WordPress Trac] #18052: 'category__and' does not filter invalid input by itself

[WordPress Trac]

#18052: 'category__and' does not filter invalid input by itself
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 Reporter:  drale2k       |       Owner:
     Type:  defect (bug)  |      Status:  new
 Priority:  normal        |   Milestone:  3.2.1
Component:  Query         |     Version:  3.2
 Severity:  normal        |  Resolution:
 Keywords:  needs-patch   |
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Comment (by nacin):

 I doubt this worked in 3.1 or 3.0.

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Ticket URL: <http://core.trac.wordpress.org/ticket/18052#comment:2>
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