[wp-trac] Re: [WordPress Trac] #9167: query_posts('meta_key=foo') returns duplicate posts

[WordPress Trac]

#9167: query_posts('meta_key=foo') returns duplicate posts
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 Reporter:  scribu        |       Owner:  anonymous
     Type:  defect (bug)  |      Status:  new      
 Priority:  normal        |   Milestone:  2.7.2    
Component:  General       |     Version:           
 Severity:  normal        |    Keywords:           
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Comment(by tomontoast):

 Surely a post shouldn't be allowed to have two identical keys. Each key
 should be unique and this wouldn't cause any problems.
 Are there any situations when you would want to have two identical keys?

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Ticket URL: <http://core.trac.wordpress.org/ticket/9167#comment:3>
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