Dialog "Authentication is required to change your own user data" appears when chnaging keyboard language inside non-physical session

[Eugene San]

Dialog "Authentication is required to change your own user data" appears when changing keyboard language inside non-physical session.

This is reincarnation of https://bugs.launchpad.net/ubuntu/+source/accountsservice/+bug/1512002.

I am experiencing the bug on 16.04 with gnome-flashback session inside x2go session.
The dialog pops-up when I try to switch keyboard language using indicator.

The irony that there is no way to enter the password when switching back to the language of the password.

This what systemd log shows when request is denied:
------------------------------------------------------------------------
polkitd(authority=local)[740]: Operator of unix-session:1 FAILED to authenticate to gain authorization for action org.freedesktop.accounts.change-own-user-data for system-bus-name::1.105 [/usr/lib/unity-settings-daemon/unity-settings-daemon] (owned by unix-user:testuser)

[Sebastien Bacher (seb128)]

Thank you for your bug report, what is a "non physical session"? how do you start it? it also seems an issue with the session, it should have an active seat if you are using it...

[Sebastien Bacher (seb128)]

was likely the same as bug #1512002