multipart/alternative question

[Tim Gray <lists+mutt@xxxxxxxxxxxxx>]

I have my alternative_order set to text/plain text/html.  All works as 
expected.  However I have some people who use a mailer (Apple Mail) that 
send multipart/alternative messages with attachments.  So the two parts of 
the message are a text/plain and a multipart/mixed.  The multipart/mixed 
consists of said file attachment and a text/html part.  Since mutt is set to 
prefer text/plain, all I see is the plain text message, with no indication 
that there is an attachment (or even an html part).

I don't know if this is normal behavior for multipart/alternative messages 
with attachments, or a quirk of Apple Mail.  I would have thought that the 
text/plain and text/html part of the messages should make up the multi/alt 
part, with other file attachments living at the same level as the multi/alt 
part, not buried in *one* of the alternative components

So, what is the best way to deal with this?  Is there anyway to just prefer 
the text/plain but look for attachments in the text/html branch?  Or have an 
indication that there is a text/html branch onscreen so I know to look 
there?  Or is the only route to set my alternative_order to prefer text/html 
first...

Thanks