Add fix for Filters Plugin dealing with duplicate rule processing and

false unread message counts.  This should close both bug # 676073
and patch # 919045 (the patch is not needed after this fix)
I do not have access to close these bugs, so if someone else will do the honor :)

plugins/filters/filters.php

@@ -279,6 +279,7 @@ function filter_search_and_delete($imap_stream, $where, $what, $where_to, $user_
     } else {
         $category = 'ALL';
     }
+    $category .= ' NOT DELETED';
 
     if ($allow_charset_search &&
         isset($languages[$squirrelmail_language]['CHARSET']) &&