what happened to the reachability diag ?

[Kapendev]

On Wednesday, 10 December 2025 at 17:53:18 UTC, Basile B. wrote:
> no template, no metaprog, no mixin, involved here. You're going 
> into Richard answer. Point is just "very simply" that you 
> should get a warning here.

I don't know who "Richard" is.
Warnings are helpful when they actually prevent something 
serious. As I already said:

> In practice this is not an issue even for "normal" code.