[wp-trac] [WordPress Trac] #14776: 'manage_' . screen . '_columns' filter not working

[WordPress Trac]

#14776: 'manage_' . screen . '_columns' filter not working
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 Reporter:  arena            |        Owner:            
     Type:  feature request  |       Status:  closed    
 Priority:  normal           |    Milestone:            
Component:  Administration   |      Version:            
 Severity:  major            |   Resolution:  worksforme
 Keywords:                   |  
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Comment(by scribu):

 PS: Make sure you're at least at r15622

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Ticket URL: <http://core.trac.wordpress.org/ticket/14776#comment:4>
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