bug#37655: 27.0.50; reversing `gnus-thread-sort-by-most-recent-date' does not work properly

[Hong Xu]

On 10/9/19 11:55 AM, Eric Abrahamsen wrote:
> I can reproduce this, but oddly it only seems to have gone wrong for
> that one thread -- all the other threads in the mailbox seem to be
> sorted correctly. I also note that the Summary buffer displays the date
> of both messages in the thread as one day earlier than the Date header
> in the message itself. So I wonder if there's just something weird about
> one or both of the messages that's causing Gnus to handle the date
> incorrectly.
>
> When I have a bit more time I'll try to figure out what date Gnus is
> trying to use for that thread.

On my personal messages, there is also only exactly one thread placed in the 
wrong position. My guess is that there may be something on the boundary not 
handled properly during sorting ...