Re: performance respooling articles in nnmbox or nnbabyl

[gsstark@MIT.EDU (Greg Stark)]

Hmm, there is another problem here.  Respooling into the same method is the
only way to make a split-method change affect existing mail messages, but it
doesn't really do what i want.

Commonly i add a new split-method when i realize that the traffic from some
list or whatever is getting high.  Then i want to move all the messages from
my misc group into the new group.  If I simply respool my entire misc
directory, all my ticks and marks are lost, all the articles show up as
unread, and a lot of extra work is done.

What i really want to happen is for the split-method functions to be
reapplied, and if the result doesn't match the existing Xref header, only
then should the article be moved.  And any marks should move with the article.

This doesn't seem too hard to get right, and i think it's pretty important 
for making split-methods more usable.

greg