Previously wxLocale object was set as the global local as soon as it was
created, even when the default ctor was used, i.e. the locale wasn't
really changed at all. This was always wrong, but only started to result
in visible problems since the changes of c6d6ec9295 (Merge branch
'msw-fix-decimal-point' of https://github.com/vslavik/wxWidgets,
2021-04-18) as we now could use the existing but not yet active locale
when checking for the decimal separator mismatch, resulting in spurious
asserts.
Fix this by postponing the call to wxSetLocale() and the rest of what
was previously done in the ctor until Init() is called (which is done by
all non default ctors).
Closes https://github.com/wxWidgets/wxWidgets/pull/2350Closes#19154.
1c8af332cf