[wp-trac] [WordPress Trac] #15572: White screen bulk action but no selected comments

[WordPress Trac]

#15572: White screen bulk action but no selected comments
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 Reporter:  duck_         |       Owner:             
     Type:  defect (bug)  |      Status:  new        
 Priority:  normal        |   Milestone:  3.1        
Component:  General       |     Version:  3.1        
 Severity:  normal        |    Keywords:  needs-patch
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 1. Visit wp-admin/edit-comments.php
 2. Perform a bulk action without checking any comments
 3. White screen

 The problem is that wp_get_refere() is returning false (since
 `_wp_http_referer` == `REQUEST_URI`) and so the
 [http://core.trac.wordpress.org/browser/trunk/wp-admin/edit-
 comments.php#L33 redirect on line 33] does nothing then we exit.

 Pre-3.1 there was no exit call after the redirect so it just fell through
 and [http://core.trac.wordpress.org/browser/trunk/wp-admin/edit-
 comments.php?rev=15132#L96 redirected at the end of the bulk action block]
 where `$redirect_to` is set because `add_query_arg` (called by
 remove_query_arg) uses `$_SERVER['REQUEST_URI']` when the old query is
 false.

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Ticket URL: <http://core.trac.wordpress.org/ticket/15572>
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