OSmesa is deprecated and has been removed from latest mesa releases, this replaces it with pbuffer rendering and flushing of the surface onto the bitmap at some specific sync points. The tests show that this is roughly how Windows seem to behave anyway, instead of rendering directly to the memory as OSmesa does.
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https://gitlab.winehq.org/wine/wine/-/merge_requests/8210
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v2: ucrtbase: Fix case mapping and ctype1 tables for utf8 locale.
ucrtbase: Fix CP_UTF8 handling in _tolower_l.
ucrtbase: Fix CP_UTF8 handling in _toupper_l.
msvcrt: Print FIXME when WideCharToMultiByte() fails in create_locinfo().
https://gitlab.winehq.org/wine/wine/-/merge_requests/8198