I would say it is a still regression, but I agree with you, that it should not work on the first place.

On Wed, Feb 28, 2018 at 3:28 PM, bauss via Digitalmars-d-learn <digitalmars-d-learn@puremagic.com> wrote:
On Wednesday, 28 February 2018 at 13:38:56 UTC, drug wrote:
done https://issues.dlang.org/show_bug.cgi?id=18539

I would argue that isn't a regression and that you __should__ use the .get and that it's not a workaround, because nullable's shouldn't be treated like that type they encapsulate.

std.math members such as approxEqual shouldn't have to take nullable into account.