[jamespwilliams]

https://go-review.googlesource.com/c/go/+/576015 this change to optimise errors.Is in the err == nil case was merged recently. It’s not included in the latest Go release, hence the stats here, but should end up in a release pretty soon I’d imagine.

[zachmu]

That's pretty cool, I'll try to remember to post a follow up when this makes it into a release.