Audiobooks showing incorrect metadata

Great that m4B audiobook support now in Plex, I can access all my audiobooks while mobile now.

The only problem I am getting is that Plex is sorting books by the reader of the audiobook not by the author.

If I load the m4B into iTunes it shows the author and title, in Plex it shows title and reader.

Is there anyway to get Plex to use the Author instead, it is much easier to find books by author rather than the current sort by reader used in Plex.

I have done a workaround, Copied Reader to Composer and copied Artist to Album Artist.

I can always put it back later - but it is easier to find a book by author rather than the default Album Artist,