Gnus 5.8.8 threading bug and threading wishlist

[Jaap-Henk Hoepman <jhh@cs.kun.nl>]

When setting

           (setq gnus-thread-ignore-subject nil)

to break threads at a change of subject, the number of articles in a thread
that is being split shows up wrong in the summary buffer (in fact it shows the
total number of articles in the original, unsplit thread). E.g. with

(setq gnus-summary-line-format "%U%R $%-4i%I %2t: %(%[%4L: %-20,20n%]%) %s\n")

then I see

O  $0     4: [3638: XXX                 ] Thread subject
O  $0         2: [  52: YYY                 ] 
O  $0             1: [  22: ZZZZ                ] 
O  $0     1: [ 123: QQQ                 ] Changed subject

As far as the wishlist is concerned: ignoring subject is intelligent enough to
recognise replies (i.e. subject changes from "Subject" to "Re: Subject" are
ignored when splitting threads) but not forwards (i.e. subject changes from
"Subject" to "Fw: Subject" or "Fwd: Subject"_will_ split the thread). In the 
latter case i would prefer to keep these articles in a single thread. 

Regards,
Jaap-Henk

-- 
Jaap-Henk Hoepman           |  I've got sunshine in my pockets
Dept. of Computer Science   |  Brought it back to spray the day
University of Nijmegen      |        Gry "Rocket"
(w) www.cs.kun.nl/~jhh      |  (m) jhh@cs.kun.nl
(t) +31 24 36 52710/531532  |  (f) +31 24 3653137