Logon fails after leave and logout selected to re-enter

[Leó Kolbeinsson]

Logon fails after "leave" and logout selected to re-enter system.

The user can enter password but is not logged in. This tested on
Dell Inspirion 3521 and Intel NUC 8i3BEK.

In order to re-enter desktop a re-boot is required.

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: sddm 0.18.1-1ubuntu1
ProcVersionSignature: Ubuntu 5.4.0-14.17-generic 5.4.18
Uname: Linux 5.4.0-14-generic x86_64
ApportVersion: 2.20.11-0ubuntu18
Architecture: amd64
CurrentDesktop: LXQt
Date: Tue Feb 25 12:34:52 2020
InstallationDate: Installed on 2020-02-24 (0 days ago)
InstallationMedia: Lubuntu 20.04 LTS "Focal Fossa" - Alpha amd64 (20200224)
SourcePackage: sddm
UpgradeStatus: No upgrade log present (probably fresh install)

[Ubuntu QA Website (ubuntuqa)]

This bug has been reported on the Ubuntu ISO testing tracker.

A list of all reports related to this bug can be found here:
http://iso.qa.ubuntu.com/qatracker/reports/bugs/1864647

[Rik Mills (rikmills)]

I think is is due to adding an upstream patch to re-use an existing session, when using user switching to a parallel session. I'll revert that for now, and investigate why this might be having unintended consequences.