Taxonomy Index not updating with free tags

First off, I'd like to say that this module provides a great way to search. Nice work :)

I'm noticing a problem with the taxonomy search index. When I create a new content node that uses free tags, the `taxonomy_facets_term_node` table is not being updated.

When I manually run the index update though, searching still doesn't work. The terms show up in the Faceted Search UI, but when I click on them, I get a page with the message "Your search yielded no results". Here is an example URL:

http://drupal.local/faceted_search/results/na/extract/relevance/na/taxon...

I'm not an expert at the internals of modules, or of drupal itself, but I tracked down the function `_query($query1, $query2)` in the faceted_search.inc file. The last condition, checking $this->_results_count == 0, always returns true.

If you have any ideas on what could be causing this, I'd be happy to hear. If you need any more information, please let me know.

Thanks.