bug#53452: 29.0.50; C-<arrow> selection broken by translate-upper-case-key-bindings

[Eli Zaretskii]

> From: Robert Pluim <rpluim@gmail.com>
> Cc: Ergus <spacibba@aol.com>,  53452@debbugs.gnu.org
> Date: Mon, 24 Jan 2022 11:54:19 +0100
> 
>     Eli> It sounds like it cannot work in that case, because shift-select
>     Eli> _requires_ that a key was shift-translated, and setting
>     Eli> translate-upper-case-key-bindings to nil disables that translation.
> 
> The docstring says:
> "If non-nil, interpret upper case keys as lower case (when applicable)."
> 
> which strongly implies that this only applies to letters, not keys
> like <right>

That's not the implementation, though.  And I'm not sure applying it
only to letters would make sense.