Hello world,

I use nnmail-split-fancy to route incoming mail to any of a few dozen
(or more) folders. Very occasionally, and with no discernable pattern,
I find a message in the wrong folder. (I have no idea how often this
actually happens, but I only notice very occasionally.)

So, for example, I find a message in “acmecorp.sales” that’s clearly
part of a thread that I’ve been reading in “acmecorp.mac-users” (in
this case). I type “B q” and Gnus (v5.13 btw) says:

  This message would go to archive.2019-02, acmecorp.mac-users

Yeah. Except, it didn’t. It want to “acmecorp.sales”.

Any clue how to debug this?

                                        Be seeing you,
                                          norm

-- 
Norman Walsh <ndw@nwalsh.com> | If you want to build a ship, don't drum
http://nwalsh.com/            | up the men to gather wood, divide the
                              | work and give orders. Instead, teach
                              | them to yearn for the vast and endless
                              | sea.--A. de Saint-Exupery