[Plugin: Facebook Comments] fb-root being still being auto-created

Although the plugin is clearly inserting the fb-root div here:

function fbmlsetup() {
...
<div id="fb-root"></div>
<script>(function(d, s, id) {
  ...
}(document, 'script', 'facebook-jssdk'));</script>
<?php }}
add_action('wp_footer', 'fbmlsetup', 100);

we are still getting the following message logged in the error console:
The "fb-root" div has not been created, auto-creating

Any ideas?

http://ww.wp.xz.cn/extend/plugins/facebook-comments-plugin/