I can't save the terms by editing the field of a custom taxonomy. Here is the code in the template :
<?php the_terms( $post->ID, 'action', '', ', ', ' ' ); ?>
I can edit the field, enter or change the terms, but when i try to save, it doesn't work. Strange thing, doing that, the "empty" word is changing into "vide" (french for empty).
No problem with the other fields so far.
I just tried Taxonomy drill-down ... Quite a good idea ! I was looking for a way to dynamically use custom taxonomies, your plugin is perfect for that !