Empty account details/options, no input fields displayed

[Forage]

Ever since the upgrade from 12.10 to 13.04 no account settings can be provided/altered for existing accounts in the UOA section of the System Settings. Only the Cancel and Done buttons are displayed at the top-right. There are no input fields displayed to actually provide any account login details. The same goes for e.g. the Empathy Options section of an account. This only appears to occur for existing accounts. I can add a new one and provide the account details, but once added, no input fields are displayed any more when I get back to the Edit Options section.

This goes for all account types like Jabber, IRC, ICQ, Google, Facebook, etc.

Attached you'll find a screenshot of the issue.

ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: signon-ui 0.14-0ubuntu1
ProcVersionSignature: Ubuntu 3.8.0-19.30-generic 3.8.8
Uname: Linux 3.8.0-19-generic x86_64
NonfreeKernelModules: fglrx
ApportVersion: 2.9.2-0ubuntu8
Architecture: amd64
Date: Thu May 16 14:34:38 2013
EcryptfsInUse: Yes
InstallationDate: Installed on 2012-10-27 (201 days ago)
InstallationMedia: Ubuntu GNOME Remix 12.10 "Quantal Quetzal" - Release amd64(20121023)
MarkForUpload: True
SourcePackage: signon-ui
UpgradeStatus: Upgraded to raring on 2013-04-25 (20 days ago)

[Forage (forage)]

The issue was present before and after I updated the packages available in the gnome3 PPA.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Arnaud Thevenet (aeromousse)]

Same issue on 13.04 with Gnome Shell. After adding a Google account, the account list remains empty. Notice that in Gnome Shell the "Online accounts" item in System settings is duplicated : the Unity item is still there (and seems to work) but the Gnome one is there and does not work.

[Forage (forage)]

Note that I'm not talking about the account list in my case, it's the settings of each individual account (see screenshot).
I also noticed that a system reboot can sometimes cause the settings to be shown, but 9 times out of 10 the settings do not.

[Arnaud Thevenet (aeromousse)]

OK, so I think I misunderstood, and this is not exactly this bug which affects me.
Thank you anyway.