Different behaviour with same package versions

[Sam_]

This is on laptop alpha-1 installation, there is no icon for it in app lens.
Crash happens reproducable on initial run via alt+f2, apport then leads user to dupe bug 911834.
It doesn't request authentication when running via alt+f2 or dash (workaround #3).

On a pc alpha-2 installation no crash yet and it has an icon in app lens, so no need to run alt+f2.
It does request authentication.

On pc, when running from a terminal it doesn't request authentication:
~$ software-properties-gtk
gpg: /tmp/tmpQVaH4f/trustdb.gpg: trust-db created

Package versions are the same on both machines.
software-properties-gtk:
  Installed: 0.82.4
  Candidate: 0.82.4
  Version table:
 *** 0.82.4 0
        500 http://archive.ubuntu.com/ubuntu/ precise/main amd64 Packages
        100 /var/lib/dpkg/status

python-gobject:
  Installed: 3.1.0-2
  Candidate: 3.1.0-2
  Version table:
 *** 3.1.0-2 0
        500 http://archive.ubuntu.com/ubuntu/ precise/main amd64 Packages
        100 /var/lib/dpkg/status

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: software-properties-gtk 0.82.4
ProcVersionSignature: Ubuntu 3.2.0-15.24-generic 3.2.5
Uname: Linux 3.2.0-15-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 1.91-0ubuntu1
Architecture: amd64
Date: Sun Feb 12 14:51:59 2012
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha amd64 (20111129.1)
PackageArchitecture: all
ProcEnviron:
 PATH=(custom, no user)
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
SourcePackage: software-properties
UpgradeStatus: No upgrade log present (probably fresh install)

[Sam_ (and-sam)]

Both .desktop files are the same.
As workaround on laptop I've set
NoDisplay=false
and then it displays in dash.
Running from dash it still doesn't request authentication as on pc, but at least it doesn't crash.

[Desktop Entry]
Name=Software Sources
GenericName=Software Sources
Comment=Configure the sources for installable software and updates
Exec=software-properties-gtk
Icon=software-properties
Terminal=false
NoDisplay=true
X-MultipleArgs=false
Type=Application
Categories=GNOME;GTK;Settings;X-GNOME-SystemSettings;
MimeType=text/x-apt-sources-list;
X-KDE-SubstituteUID=true
X-Ubuntu-Gettext-Domain=software-properties

[Sam_ (and-sam)]

There is an example video from pc showing auth request. (Ign the crash, it's fixed released)
https://bugs.launchpad.net/ubuntu/+source/pygobject/+bug/905602/+attachment/2825365/+files/software-properties-pc.ogv

[Sam_ (and-sam)]

Solved on 18.04.2