Aristophanes won't unsplit.

https://www.librarything.com/author/aristophanes is split, but there's only one author, and the only explanation is a sarcastic Collectorator disambig. But there's no way to unsplit it; even when all works are assigned to unknown, it just says "To save as a single author, you must first remove all assignemnts(sic) below and save."

Looks like another occurrence of https://www.librarything.com/topic/324596

Closing as a duplicate of previously reported bug.