I'm confused, how is that different from https://play.golang.org/p/rup5cqapEU https://play.golang.org/p/rup5cqapEU where calling on the nil value of T seems t

I'm confused, how is that different from https://play.golang.org/p/rup5cqapEU https://play.golang.org/p/rup5cqapEU where calling on the nil value of T seems to work.