The testcase for LXsession needs to be rewritten. The name of the gui app is "Default applications for LXSession" not "Desktop session settings". What the testcase outlined to perform was not clear to follow.
lxsession:
Installed: 0.4.9.2+git20140410-0ubuntu3
Candidate: 0.4.9.2+git20140410-0ubuntu3
Version table:
*** 0.4.9.2+git20140410-0ubuntu3 0
500 http://us.archive.ubuntu.com/ubuntu/ vivid/universe amd64 Packages
100 /var/lib/dpkg/status
Distributor ID: Ubuntu
Description: Ubuntu Vivid Vervet (development branch)
Release: 15.04
Codename: vivid
ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: lxsession 0.4.9.2+git20140410-0ubuntu3
ProcVersionSignature: Ubuntu 3.18.0-9.10-generic 3.18.2
Uname: Linux 3.18.0-9-generic x86_64
ApportVersion: 2.15.1-0ubuntu4
Architecture: amd64
Date: Sat Feb 7 22:04:09 2015
InstallationDate: Installed on 2015-01-25 (14 days ago)
InstallationMedia: Lubuntu 15.04 "Vivid Vervet" - Alpha amd64 (20150123)
SourcePackage: lxsession
UpgradeStatus: No upgrade log present (probably fresh install)
This bug has been reported on the Ubuntu Package testing tracker.
A list of all reports related to this bug can be found here:
http://