AnsPress_Tag::ap_main_questions_args( array $args )

	public static function ap_main_questions_args( $args ) {
		global $wp;
		$query = $wp->query_vars;

		$current_filter = ap_get_current_list_filters( 'qtag' );
		$tags_operator = ! empty( $wp->query_vars['ap_tags_operator'] ) ? $wp->query_vars['ap_tags_operator'] : 'IN';

		if ( isset( $query['ap_tags'] ) && is_array( $query['ap_tags'] ) ) {
			$args['tax_query'][] = array(
				'taxonomy' => 'question_tag',
				'field'    => 'slug',
				'terms'    => $query['ap_tags'],
				'operator' => $tags_operator,
			);
		} elseif ( ! empty( $current_filter ) ) {
			$args['tax_query'][] = array(
				'taxonomy' => 'question_tag',
				'field'    => 'term_id',
				'terms'    => $current_filter,
			);
		}

		return $args;
	}