[Issue 12990] utf8 string not read/written to windows console

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=12990

--- Comment #1 from Sobirari Muhomori <dfj1esp02 at sneakemail.com> ---
This bug is probably better to split. It either read an invalid utf-8 string,
or couldn't write a valid utf-8 string.

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