[Issue 19488] std.typecons.Nullable(T, T nullValue) doesn't handle NaN for built-in complex and imaginary

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=19488

--- Comment #1 from Nathan S. <n8sh.secondary at hotmail.com> ---
Fix added to https://github.com/dlang/phobos/pull/6693

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