Stefan Monnier wrote:

>>!     `(let ((,temp-buffer (generate-new-buffer " *temp*"))
>>!            (buffer-undo-list t))
>>    
>>
>
>Buffer whose name start with a space have their undo disabled by default.
>I.e. someone thought of that years ago already,
>  
>
Then my previous patch can be simplified.
Any objections?