[Issue 16047] Range violation in setting multi-dimensional AA entries

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=16047

--- Comment #1 from Mario Kroeplin <kroeplin.d at googlemail.com> ---
Workaround: use `require`

    aa.require(S("baz").s, null)["baz"] = SysTime.init;

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