bug#31739: 25.2; Cannot expire articles in virtual group

[Jamie Forth]

Lars Ingebrigtsen <larsi@gnus.org> writes:

> It does seem like the nnimap expiration function isn't being called at
> all, somehow.
>
> Would it be possible for you do open nnvirtual.el and `M-x edebug-defun'
> on `nnvirtual-request-expire-articles' and then step through the
> function when exiting from the nnvirtual group (with some articles
> marked as expirable)?
>
> What's interesting here is whether the
>
>   (gnus-group-expire-articles-1 group)
>
> form is being executed for the nnimap group.  

gnus-group-expire-articles-1 is being called.

Stepping through gnus-group-expire-articles-1, 
expirable is nil.

The value returned from (gnus-info-marks info) is:

  ((seen (22 . 40)) (unexist (1 . 34)))

So the expirable marks are getting dropped somehow?

--
Jamie