bbp_get_topic_raw_revision_log( int $topic_id )

		function bbp_get_topic_raw_revision_log( $topic_id = 0 ) {
			$topic_id = bbp_get_topic_id( $topic_id );

			$revision_log = get_post_meta( $topic_id, '_bbp_revision_log', true );
			$revision_log = empty( $revision_log ) ? array() : $revision_log;

			return apply_filters( 'bbp_get_topic_raw_revision_log', $revision_log, $topic_id );
		}