[PATCH v2 0/1] MR6141: ucrtbase: Fix mbstowcs on UTF8 strings.

[Piotr Caban (＠piotr)]

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=56994

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  v2: ucrtbase: Fix mbstowcs on UTF8 strings.
 
https://gitlab.winehq.org/wine/wine/-/merge_requests/6141