bug#19774: 25.0.50; Emacs crashes when C-u <N> on a Gnus folder (reproducible)

[Eli Zaretskii]

> From: Sebastien Vauban <sva-news@mygooglest.com>
> Date: Wed, 04 Feb 2015 23:34:13 +0100
> 
> When pressing C-u 9 (for example) on a Gnus folder, Emacs crashes (right
> after the key 9 has been pressed)... iff key-chord mode (20140929.2246)
> is enabled.  There is clearly an interaction, as the Emacs crash won't
> occur if key-chord is disabled...
> 
> And that did happen since that version of key-chord; it wasn't there
> with the previous one -- which I don't know how to reinstall through
> (M)ELPA...
> 
> As far as I know, only Gnus is affected by the bug.  I can use numerical
> prefixes in many other situations without any crash.

Any hope to get a reproducible recipe?