[Dovecot] deliver copies "^From " header lines when delivering to Maildir

[pod]

>>>>> "TS" == Timo Sirainen <tss at iki.fi> writes:

    >> Well, doing it only if it's the first header would make it
    >> better. I guess I could do something like that since this is a
    >> pretty common problem..

    TS> http://hg.dovecot.org/dovecot-1.0/rev/4c807839ac0c

Hasn't create_mbox_stream() returned by the time save_header_callback() is
called?  Doesn't that mean that the &first passed as *context to
save_header_callback() is of dubious validity?