Software Centre Installations stall if closed before auth

The full title is: Software installations stall if the software centre is closed before the "authentication" dialog (enter in the adminstrator password) appears.

To reproduce this bug, make sure that the software centre is closed, then open it. Download an application by clicking "install". Now, immediately close software centre. The application will appear in the launcher but will never install.

I just did a fresh installation of Ubuntu (approximately an hour ago as the time of this writing) and this error still occurs. Particularly problematic if the authentication dialog takes about 10 seconds to show. Reopening the software center does not make the stalled software install, nor does an authentication dialog appear.

Restarting the system removes the stalled installation of the application (essentially cancelling the installation)

What I expect to occur is the authentication dialog to appear and authenticate or to cancel the installation.

Description: Ubuntu 14.04.1 LTS
Release: 14.04

software-center:
  Installed: 13.10-0ubuntu4.1
  Candidate: 13.10-0ubuntu4.1
  Version table:
 *** 13.10-0ubuntu4.1 0
        500 http://<ubuntuMirrorUrl>/ubuntu/ trusty-updates/main amd64 Packages
        100 /var/lib/dpkg/status
     13.10-0ubuntu4 0
        500 http://<ubuntuMirrorUrl>/ubuntu/ trusty/main amd64 Packages

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: software-center 13.10-0ubuntu4.1
ProcVersionSignature: Ubuntu 3.13.0-33.58-generic 3.13.11.4
Uname: Linux 3.13.0-33-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.3
Architecture: amd64
CurrentDesktop: Unity
Date: Tue Aug 12 16:59:37 2014
ExecutablePath: /usr/share/software-center/software-center
InstallationDate: Installed on 2014-08-12 (0 days ago)
InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
InterpreterPath: /usr/bin/python2.7
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=en_CA:en
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_CA.UTF-8
 SHELL=/bin/bash
SourcePackage: software-center
UpgradeStatus: No upgrade log present (probably fresh install)