Multiple taxonomy queries doesn’t work.

The following code doesn’t work.

[su_posts template="templates/list-loop.php" id="" posts_per_page="100" post_type="paper" taxonomy="papercat" tax_term="first" tax_operator="IN" taxonomy_2="papercat" tax_2_term="index" tax_2_operator="NOT IN" tax_relation="AND" author="" meta_key="" offset="0" order="ASC" orderby="date" post_parent="" post_status="publish" ignore_sticky_posts="no"]

When shortcodes.php(1276-) is seen, they seem to be supporting it.

// Check for multiple taxonomy queries
$count = 2;
$more_tax_queries = false;
...