bbp_get_topic_tag_link( $tag = '' )

	function bbp_get_topic_tag_link( $tag = '' ) {

		// Get the term
		if ( ! empty( $tag ) ) {
			$term = get_term_by( 'slug', $tag, bbp_get_topic_tag_tax_id() );
		} else {
			$tag  = get_query_var( 'term' );
			$term = get_queried_object();
		}

		// Add before and after if description exists
		if ( !empty( $term->term_id ) ) {
			$retval = get_term_link( $term, bbp_get_topic_tag_tax_id() );

		// No link
		} else {
			$retval = '';
		}

		return apply_filters( 'bbp_get_topic_tag_link', $retval, $tag );
	}