Mike Kupfer <m.kupfer@acm.org> writes:

> In the *Group* buffer, the docstring for "g" says
>
>     If ARG is non-nil and not a number, this will force
>     "hard" re-reading of the active files from all servers.
>
> So IIUC,
>
>   C-u g
>
> should give me a hard rescan.  Instead I get an error with the following
> backtrace:
>
>   Debugger entered--Lisp error: (wrong-type-argument number-or-marker-p (4))
>     <=(1 (4))
>     gnus-get-unread-articles((4) nil nil)
>     gnus-group-get-new-news((4))
>     funcall-interactively(gnus-group-get-new-news (4))
>     call-interactively(gnus-group-get-new-news nil nil)
>     command-execute(gnus-group-get-new-news)
>
> I see this with Emacs 24.5 and Emacs 25.  Am I confused or is this
> broken?
>
> thanks,
> mike

My vote is for "broken". Would you try out the attached patch? It will
avoid the error -- I also hope it will produce the correct behavior.

Thanks,
Eric