RPATHS and CONTENT_LENGTH

It looks like RPATHS and Casper Dik's CONTENT_LENGTH patch don't mix --
only the first piece of mail incorporated from a mailbox gets a
Return-Path header, all the rest retain their From_ lines in their MH
message files.  Has anybody worked this problem out yet?  Alternately,
is anybody using 6.8.4 + RPATHS + CONTENT_LENGTH successfully?

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Roderick Schertler
roderick(_at_)gate(_dot_)net