renumber following crash is wrong in 2.3

[Karl Kleinpaste]

Katsuhiro Kondou <kondou at nec.co.jp> writes:
> Currently overview is used for renumbering, and no spool area
> is searched.  It's very easy to find art num for tradspool but
> very difficult for others.

That's very distressing, since the result is that self-survivability
is actually architected out of existence for tradspool.

> It looks like you're running overchan which has possibility of not
> keeping up with innd.

No:

    [1041] [09:39:07] cinnamon:/home/news/etc> grep over inn.conf
    enableoverview:         true
    overcachesize:          15
>>  useoverchan:            false
    nnrpdoverstats:         true
    pathoverview:           /home/news/spool/overview

The overchan line of newsfeeds has never been uncommented.