[Bug 1721926] [NEW] Can't change language from Chinese back to English

[netman]

Public bug reported:

I chose English as the installation language from the beginning, then
changed to Chinese. But when I want to change it back to English, it
doesn't work. I logged off then logged in, there is Chinese on the
screen.

ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: ubuntu-release-upgrader-core 1:17.10.6
ProcVersionSignature: Ubuntu 4.13.0-12.13-generic 4.13.3
Uname: Linux 4.13.0-12-generic x86_64
ApportVersion: 2.20.7-0ubuntu2
Architecture: amd64
CrashDB: ubuntu
CurrentDesktop: ubuntu:GNOME
Date: Sat Oct  7 14:53:41 2017
InstallationDate: Installed on 2017-08-01 (66 days ago)
InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Alpha amd64 (20170731)
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
Symptom: release-upgrade
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: ubuntu-release-upgrader (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug artful dist-upgrade wayland-session

** Attachment added: "can't change language from Chinese to English."
   https://bugs.launchpad.net/bugs/1721926/+attachment/4964207/+files/2017-10-07%2014-58-58%20%E7%9A%84%E5%B1%8F%E5%B9%95%E6%88%AA%E5%9B%BE.png

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https://bugs.launchpad.net/bugs/1721926

Title:
  Can't change language from Chinese back to English

Status in ubuntu-release-upgrader package in Ubuntu:
  New

Bug description:
  I chose English as the installation language from the beginning, then
  changed to Chinese. But when I want to change it back to English, it
  doesn't work. I logged off then logged in, there is Chinese on the
  screen.

  ProblemType: Bug
  DistroRelease: Ubuntu 17.10
  Package: ubuntu-release-upgrader-core 1:17.10.6
  ProcVersionSignature: Ubuntu 4.13.0-12.13-generic 4.13.3
  Uname: Linux 4.13.0-12-generic x86_64
  ApportVersion: 2.20.7-0ubuntu2
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: ubuntu:GNOME
  Date: Sat Oct  7 14:53:41 2017
  InstallationDate: Installed on 2017-08-01 (66 days ago)
  InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Alpha amd64 (20170731)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  Symptom: release-upgrade
  UpgradeStatus: No upgrade log present (probably fresh install)

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