continued ?

hello

i have a strange thing since i upgraded to v2.0.1.

when i reply to a message, then look at the Threaded index, the
reply message appears twice : in a thread sub paragraph ( as 
it should appear ) and also at the top of the index, with no link
to the message, and with the word "(continued)" . This second
thing disappears when i send another message to the list.

where does it come from ?