bug#62845: 29.0.90; nntp-with-open-group-function kills current buffer on timeout

[Eli Zaretskii]

> From: Andreas Schwab <schwab@linux-m68k.org>
> Date: Fri, 14 Apr 2023 23:47:03 +0200
> 
> When the connection to the nntp server times out (if
> nntp-connection-timeout is non-nil) nntp-with-open-group-function kills
> the process buffer.  But that is the current buffer at this point if
> called from nntp-finish-retrieve-group-infos, causing the latter
> function to try to read (and modify!) a random buffer that happend to be
> the LRU buffer at that point.

Thanks.

If this is a recent regression, could you perhaps bisect to find the
offending commit(s)?