Seafaring Werewolf dealing lethal damage to its owner locked game up in infinite loop of transforming

I'm not entirely sure how this happened, but when Seafaring Werewolf attacked as part of a lethal swing to the player who owned Seafaring Werewolf; when this happened, Seafaring Werewolf immediately went into an infinite loop of transforming back into [[Suspicious Stowaway]] and then into Seafaring Werewolf again, locking the entire game up so hard I had to kill the Java process.