Warning: Undefined property: stdClass::$hidden

Hi!

Thanks for a great plugin.

We’re getting some warnings in our admin from the plugin though.

Here’s a stacktrace:

ErrorException: Warning: Undefined property: stdClass::$hidden #5 /app/public/wp-content/plugins/taxonomy-filter/taxonomy-filter-bulks.php(55): taxonomy_filter_add_to_bulk_quick_edit_custom_box #4 /app/public/wp-includes/class-wp-hook.php(326): WP_Hook::apply_filters #3 /app/public/wp-includes/class-wp-hook.php(348): WP_Hook::do_action #2 /app/public/wp-includes/plugin.php(517): do_action #1 /includes/class-wp-posts-list-table.php(2071): WP_Posts_List_Table::inline_edit #0 /edit.php(509): null