enabling Filevault 2 displays Admin users at boot

[Oclair]

Enabling Filevault 2 lists Admin users at boot regardless of the "Display login window as: Name and password" in the Users and Groups login options.

Is there a work around?

[renickbuettner]

I also experience this thing. How can we force username and password list instead of the avatars? Even hiding admin users don't "hide" them