Remove messages from the requested URI so they don't follow us around while paging.

git-svn-id: https://develop.svn.wordpress.org/trunk@7046 602fd350-edb4-49c9-b593-d223f7449a82

wp-admin/categories.php

@@ -114,7 +114,8 @@ $messages[5] = __('Category not updated.');
 
 <?php if (isset($_GET['message'])) : ?>
 <div id="message" class="updated fade"><p><?php echo $messages[$_GET['message']]; ?></p></div>
-<?php endif; ?>
+<?php $_SERVER['REQUEST_URI'] = remove_query_arg(array('message'), $_SERVER['REQUEST_URI']);
+endif; ?>
 
 <div class="wrap">
 <form id="posts-filter" action="" method="get">