dip1000 and preview in combine to cause extra safety errors

[Walter Bright]

On 6/8/2022 12:18 PM, claptrap wrote:
> Isn't the DIP process supposed to catch these sorts of things?

It does catch those sorts of things. But the checks do not happen for @system 
code, and the code snippet is @system code.

I submitted a DIP to make @safe the default (rather than @system) but it was 
rejected. This is the result.