Subject: bug#33140: 27.0.50; `gnus-posting-styles' sees nil ‘message-reply-headers’ variable

From: Óscar Fuentes <[email-masked]>
Date: Thu, 10 Jan 2019 23:47:49 +0100

I discovered this bug report after wasting some time trying to figure
out what was wrong with my code. Emacs 26.1 here.

Activating lexical binding in gnus-msg.el has no effect.