bug#81609: 31.0.90; Loading debug overwrites debugger

> From: Al Haji-Ali <[email protected]>
> Date: Wed, 12 Aug 2026 14:18:33 +0100
> 
> 
> In debug.el there's a naked setq (with an autoload cookie?)
> 
> ,----
> | ;;;###autoload
> | (setq debugger 'debug)
> `----
> 
> which means that whenever debug is required, the previous value of
> `debugger` is silently overwritten. In my case, I set in my config
> `debugger` to a custom value and `debug` was being lazy-loaded after it
> which was overwriting the value.
> 
> I am not sure why this is done, since `debugger` has the value `debug`
> by default.

Stefan, any comments or suggestions?