This past week has been very busy, so sorry for the late response. I had not upgraded my system at the time of reporting the bug. I have since upgraded the system and can report that it still applies. I am running Freya Beta 2. I have not added anything to /usr/share/lightdm/lightdm.conf.d/ and there is no 60-guest-session.conf file in that directory. The setting reverts after closing switchboard. I originally thought that that might be because it had not rebooted, but this might be the actual root of the issue. I will try a fresh install and upgrade tonight and see if it is just an anomaly.
This past week has been very busy, so sorry for the late response. I had not upgraded my system at the time of reporting the bug. I have since upgraded the system and can report that it still applies. I am running Freya Beta 2. I have not added anything to /usr/share/ lightdm/ lightdm. conf.d/ and there is no 60-guest- session. conf file in that directory. The setting reverts after closing switchboard. I originally thought that that might be because it had not rebooted, but this might be the actual root of the issue. I will try a fresh install and upgrade tonight and see if it is just an anomaly.