(appeal of trial court’s grant of summary judgment to bank where trial court determined that bank held superior security interest over after-acquired livestock for which debtor did not pay defendant; appellate court affirmed summary judgment on basis that security interest attached to livestock even though drafts for livestock submitted by debtor were not honored by bank because debtor had voidable title which allowed security interest to attach; court also held bank owed no duty of good faith to defendants as third party, so bank was good faith purchaser despite its knowledge of defendant’s claims; concurrence filed which suggested statutory language to protect parties such as defendant in the future; dissents filed arguing questions of fact regarding bank’s role should have prevented summary judgment and defendant should have been permitted to argue good faith against bank).