[Linux] localeResolutionCallback returns null

[aliyazdi75]

On master channel localeResolutionCallback on Linux returns null.

MaterialApp(
           localeResolutionCallback: (locale, supportedLocales) {
                return locale;
           },
...
);

I have en_US locale on my Linux:

[✓] Flutter (Channel master, v1.15.19, on Linux, locale en_US.UTF-8)
 
[✓] Android toolchain - develop for Android devices (Android SDK version 29.0.3)
[✓] Chrome - develop for the web
[✓] Linux toolchain - develop for Linux desktop
[✓] Android Studio (version 3.6)
[✓] Connected device (4 available)

[VladyslavBondarenko]

Hi @aliyazdi75
I see there's an open issue addressing the case you described.
Please follow up on #45343,
I'm closing the current one as duplicate.
If you disagree please write in the comments
and I will reopen it.
Thank you

[lock]

This thread has been automatically locked since there has not been any recent activity after it was closed. If you are still experiencing a similar issue, please open a new bug, including the output of flutter doctor -v and a minimal reproduction of the issue.