bug#2069: 23.0.60; labels of RMAIL not inherited

I just started to use the new rmail (i.e. pmail).  When I
first do M-x rmail, the babyl format of RMAIL is converted
to mbox format automatically.  But, it seems that labels are
lost.  At least, they are not shown in RMAIL nor
RMAIL-summary buffers.

---
Kenichi Handa
[email protected]



In GNU Emacs 23.0.60.3 (i686-pc-linux-gnu, X toolkit, Xaw3d scroll bars)
 of 2009-01-26 on etlken
Windowing system distributor `The X.Org Foundation', version 11.0.10502000
Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: en_US.UTF-8
  value of $XMODIFIERS: nil
  locale-coding-system: utf-8-unix
  default-enable-multibyte-characters: t

Major mode: RMAIL

Minor modes in effect:
  display-time-mode: t
  tooltip-mode: t
  tool-bar-mode: t
  mouse-wheel-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  global-auto-composition-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  line-number-mode: t

Recent input:
C-n C-n C-n C-n C-n C-n C-n C-u C-v C-p C-p C-p C-e 
C-a C-r r m a i l - s u m m a r y - h e a C-s C-x C-x 
C-e M-b M-b M-b C-s C-w C-w C-w C-r C-r C-r C-a C-x 
b <return> <escape> < C-s C-s C-n C-n C-n M-b M-b M-b 
C-s C-w C-w C-w C-a C-x b <return> C-s C-s C-s C-a 
C-M-a C-SPC C-M-n <escape> w C-x L C-y C-x C-x C-n 
C-n C-n C-n C-n C-e M-b M-b M-d k e y w o M-/ M-d C-M-x 
C-x b R M <tab> <return> h C-x k <return> C-x o h C-x 
o C-x k <return> C-g s h C-x o C-x k <return> M-x C-g 
M-r h p p p p p n p p p p p C-x o C-x b SPC m <tab> 
<return> <escape> < C-v C-x b <return> S m u s t r 
e p l y <return> x o C-g C-x o n n n n n n n n n n 
n n n n n n n n n n n n n p p p p p p p p p n p p p 
p p p n k <return> h n h C-x o C-x b C-g C-x b <return> 
C-c C-d C-x b <return> h q p C-x o C-x o C-x b * <backspace> 
C-g C-x L C-/ C-/ C-/ C-/ C-M-x C-x b <return> s t 
t n g p n n n n n n n n n n n n n n n C-r r m a i l 
C-a C-x o C-r p m a C-a C-a j C-x o <escape> x r e 
p o <tab> r t <tab> <return>

Recent messages:
Expunging deleted messages...done
Computing summary lines...done
Saving file /usr/local/handa/RMAIL...
Wrote /usr/local/handa/RMAIL
(No new mail has arrived)
Computing summary lines...done
0 new messages read
No following nondeleted message [2 times]
Mark saved where search started
Making completion list...