D is dead

[Ecstatic Coder]

> Hang on a second.
>
> assert(preserve == Yes.preserveAttributes);
>
> Something is smelling an awful lot here.
>
> Up to Windows 7 CopyFileW which is used for Windows didn't copy 
> the attributes over[0] but it does now.
>
> This is a bug on our end, which should include a fallback to 
> copying manually the file contents over.
>
> [0] 
> https://docs.microsoft.com/en-us/windows/desktop/api/winbase/nf-winbase-copyfilew

Yeah, keeping exactly the same behavior on every supported 
platform is never easy.

And when you need to support Windows too, by experience I know it 
can quickly become a pain in the *ss...