(defendants appeal trial court judgments against them in favor of plaintiff sister for $264,951 and plaintiff brothers for combined total of $895,786 after bench trial of siblings’ claims that defendants engaged in breach of fiduciary duty and self-dealing in capacity as officers and directors of family farm corporation; defendants argued on appeal that action against them barred in part by statute of repose and completely by statute of limitations; inequitable conduct of plaintiffs barred their recovery, and trial court erroneously placed burden of proof on defendants; appellate court concluded plaintiffs lacked standing as individual shareholders to bring derivative claims against corporation; appellate court vacated judgments and remanded with directions to dismiss).