Comment out the following JS around line 784 on disqus.php
<script type="text/javascript">
jQuery(function($) {
fix menu
var mc = $('#menu-comments');
mc.find('a.wp-has-submenu').attr('href', 'edit-comments.php?page=disqus').end().find('.wp-submenu li:has(a[href=edit-comments.php?page=disqus])').prependTo(mc.find('.wp-submenu ul'));
});
</script>
I bet theres a better fix for this, but this would get the job done.
Disqus Version 2.65, File: disqus.php
Rather than commenting out, changing line 788 from
mc.find('a.wp-has-submenu').attr('href', 'edit-comments.php?page=disqus').end().find('.wp-submenu li:has(a[href=edit-comments.php?page=disqus])').prependTo(mc.find('.wp-submenu ul'));
to
mc.find('a.wp-has-submenu').attr('href', 'edit-comments.php?page=disqus').end().find('.wp-submenu li:has(a[href="edit-comments.php?page=disqus"])').prependTo(mc.find('.wp-submenu ul'));
fixes the problem 🙂