Hi,

I've been mentioning this bug before, but finally I have some easy steps to
reproduce, plus a backtrace. I've seen this problem with the Ubuntu-packaged
versions of wl-beta and emacs23, and now reproduced this with a recent bzr
built of emacs and the wl packages as built from Dave Abrahams' git repo.

The procedure to reproduce (in my case) are quite easy: type some non-ascii
characters in a draft message in Wanderlust, something like

äëïöÿüäëïöüÿäëïöüÿäëïöüÿäëïöüÿäëïöüÿäëïöüÿäëïöüÿäëïöüÿäëïöüÿäëïöüÿäëïöüÿäëïöü

Try to save the draft (C-x s). This works. Now, copy the line about 50 times,
so you have a whole block of these characters. If I now try to save, emacs
gets very busy (CPU goes to the max), and it never seems to recover (waited
for at least 15 minutes), and I have to kill emacs. See the attached backtrace
- it was from an -O2 build, but I hope it contains enough info for those in
  the know.

Note, I get this this same behavior in perfectly normal e-mails with only a
few of these non-ascii characters.

Before, someone suggested using
   (mel-use-module 'mel-q '("quoted-printable" "Q"))
however, that gives me an error instead:
	 insert: Args out of range: "0123456789ABCDEF", 262140
and refuses to save.

I suspect something changed in Emacs 23 and Wanderlust (or flim, semi, apel)
do not play nice with that.

Any kind of solution would be much appreciated.

Best wishes,
Dirk.