https://issues.dlang.org/show_bug.cgi?id=17440
--- Comment #16 from hst...@quickfur.ath.cx --- Rebooted: https://github.com/dlang/phobos/pull/6043 Due to design issues with the current implementation of Nullable, it's not possible to fix the problem of having two distinct null states without extensive changes and breaking backward-compatibility. So for now, we'll just make it so that .nullify doesn't call .destroy on class references. --