bug#28176: 26.0.50; Emacs hangs on entering a specific article in gnus

[Eli Zaretskii]

> From: Sam Steingold <sds@gnu.org>
> Date: Mon, 21 Aug 2017 12:09:13 -0400
> 
> Emacs hangs with a yellow triangle in the middle of the frame
> (indicating ding) but C-g and C-] do not interrupt.
> CPU usage is at 90%.
> The only way out is "force quit" in activity monitor.
> "sample" is attached
> I seem to be able to reproduce the hang by trying to enter a specific
> article in an nntp group.

Not sure I understand: do you mean that to reproduce the hang one
should just visit this file from "emacs -Q"?  Because if so, Emacs
doesn't hang for me here.