bug#70579: 30.0.50; gnus: Wrong unread count in the Group buffer

[James Thomas via "Bug reports for GNU Emacs, the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>]

- (Preferably starting with an empty drafts folder) Compose a message
  and save it.
- Open the drafts group, press e on the message and then kill the new
  buffer; then (incidentally, if you now do '/ N' then this bug does not
  arise) delete the message (B DEL)
- Press q
- The message count is wrong (but can be corrected with M-g)

cf. In gnus.general (gnus-summary-goto-article "87y192lr8f.fsf@gmx.net")


In GNU Emacs 30.0.50 (build 1, x86_64-pc-linux-gnu, GTK+ Version
 3.24.33, cairo version 1.16.0) of 2024-03-19 built on
 user-Inspiron-15-5518
Repository revision: 88355de6022458c3e890cc6d5da60d6f35fe8868
Repository branch: master
Windowing system distributor 'The X.Org Foundation', version 11.0.12101004
System Description: Ubuntu 22.04.3 LTS

Configured features:
ACL CAIRO DBUS FREETYPE GIF GLIB GMP GNUTLS GPM GSETTINGS HARFBUZZ JPEG
JSON LCMS2 LIBOTF LIBSELINUX LIBSYSTEMD LIBXML2 M17N_FLT MODULES NOTIFY
INOTIFY PDUMPER PNG RSVG SECCOMP SOUND SQLITE3 THREADS TIFF
TOOLKIT_SCROLL_BARS TREE_SITTER WEBP X11 XDBE XIM XINPUT2 XPM GTK3 ZLIB

Important settings:
  value of $LANG: en_IN
  value of $XMODIFIERS: @im=ibus
  locale-coding-system: iso-latin-1-unix

Major mode: Summary

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