What's the deal with the massive duplication in std.meta?

[Paul Backus]

On Tuesday, 4 May 2021 at 18:19:10 UTC, Q. Schroll wrote:
> On Tuesday, 4 May 2021 at 17:45:53 UTC, Paul Backus wrote:
>>
>> There's an open spec PR:
>>
>> https://github.com/dlang/dlang.org/pull/2919
>
> How does something like this not require a DIP?

Beats me. Seems like at the very least it should have a 
`-preview` switch.

I suspect the actual answer is "it's Walter's PR, and Walter can 
get away with ignoring the official process." If you click 
through to the DMD PR you can see some discussion about this.