bug#57082: 29.0.50; emacs-news-view-mode breakage

[Drew Adams]

This may be irrelevant/off-topic; if so, please ignore.

Whenever we have an icon or character (e.g. +, -)
that acts as a button to expand or contract some
hierarchical info by clicking the mouse, would it be
good to also have a mouseover tooltip there, that
lets you know a toggle key that both expands and
contracts (based on point being on that line or
whatever)?

Emacs typically has keyboard keys to toggle things,
and expanding/contracting together toggle.

Presumably there's a toggle key for the display
change involved here (if not, shouldn't there be?),
and it might be good to let someone using a mouse
know that there's an alternative to try.

The mouseover help won't show unless you hesitate
with the mouse over the icon/character, so this
shouldn't be annoying etc.

Just an idea.  (Maybe this is already available?)