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From: Julien Cubizolles <j.cubizolles@free.fr>
Newsgroups: gmane.emacs.devel,gmane.emacs.gnus.user
Subject: Emacs dumps core in Gnus with gnus-uu-mark-thread
Date: Wed, 22 Jan 2020 11:55:14 +0100
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In recent versions, Emacs is crashing whenever I run gnus-uu-mark-thread in a
*Summary* buffer, and even when accessing some groups from the *Group*
buffer. Also the *Summary* modeline gets funky when ticking a message,
marking it unread...

I've never seen anything like it.

The relevant version numbers are:

GNU Emacs 28.0.50 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.24.12,
cairo version 1.16.0) of 2020-01-22

Gnus v5.13

I don't have this problem rolling back to:
GNU Emacs 26.3 (build 2, x86_64-pc-linux-gnu, GTK+ Version 3.24.11) of
2019-09-23, modified by Debian

Julien.