bug#29478: [Patch] bug#29478: 26.0.90; `C-h k' followed by mouse clicks no longer shows down event

[Eli Zaretskii]

> From: Stefan Monnier <monnier@IRO.UMontreal.CA>
> Cc: acm@muc.de, 29478@debbugs.gnu.org, npostavs@users.sourceforge.net
> Date: Tue, 30 Jan 2018 09:18:04 -0500
> 
> >> OK, in help--filter-info-list in the patch below I follow the rule of
> >> getting rid of all `undefined` keys except when there are only undefined
> >> keys in which case I keep the last one (e.g. the triple-mouse-N).
> > Thanks.
> 
> Should I push it to master?

I think so, yes.