mit-athena/lightdm-config — pull request #1 by jdreed (2014-07-05 20:18:44+00:00)
Title: Support user-switching on logind releases

Query logind for a logged-in user, and permit the user
to switch back to their session. Throw up an obnoxious dialog,
since nobody will actually read the login dialog, and will keep
trying to type their username in the password field.