Subject: bug#23571: 25.1.50; Click-mouse-1 = Drag-mouse-1 in Gnus Article buffer

From: Stefan Monnier <[email-masked]>
Date: Fri, 10 Jun 2016 13:18:26 -0400

>     * lisp/wid-edit.el (widget-keymap): Bind `widget-button-click'
>     to mouse-1/-2 instead of down-mouse-1/-2.  Suggested by Stefan
>     Monnier.  (Bug#19185, Bug#20398)

FWIW, I'm not surprised it introduces problems.
I do think it (or something like it) is a desirable change, but it
requires further changes.

        Stefan