The Formats preview tries to find the measurement format of the locale
to preview, and then displays it. However, it displays the text in the
default locale, instead of in the real current locale, as newlocale ()
with base = (locale_t) 0 will use the default locale.
This is fixed by switching back to the real locale before setting the
label text.
Fixes#2458
Part-of: <https://gitlab.gnome.org/GNOME/gnome-control-center/-/merge_requests/2051>
"Language" and "Formats" rows from the "Login Screen" section
have the same mnemonics of their counterparts from the "Your Account"
section. Use other letters for mnemonics to fix that.
