[Bug 54844] Existing prefixes keep resetting to Win10 when wine is updated

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=54844

--- Comment #4 from Hans Leidekker  ---
(In reply to Austin English from comment #3)
> Introduced by:
> commit 3a819255f57e54917c598e66e60efb875162f8a3
> Author: Hans Leidekker 
> Date:   Mon Jan 23 15:09:58 2023 +0100
> winecfg: Fix CurrentVersion registry string for Windows 10 and up.
>
> It no longer reflects the real OS major and minor version numbers.

The issue existed before this patch but didn't show up because winecfg didn't
look at the CurrentMajor/MinorVersion values before this patch (introduced with
Windows 10).

Adding FLG_ADDREG_NOCLOBBER(0x2) to these registry values fixes it.