Bad default installation harms Update Manager

[WaltSullivan]

Since I installed apt-listchanges, when I run update-manager, update-manager seems to hang (pause without end) displaying its "Applying changes" window.

When I opened the "Details", I was shown a single line of text "(END) /tmp/<randomname>".

After expanding the window, I found it was apt-listchange's output, put through apt-listchange's pager, which was waiting for my input.

This violates the Principle of Least Surprise.

Prior to my installation of apt-listchanges, update-manager ran without any keyboard input, after installing apt-listchanges, update-manager does not.

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: apt-listchanges 2.85.8ubuntu1
ProcVersionSignature: Ubuntu 3.0.0-14.23-generic 3.0.9
Uname: Linux 3.0.0-14-generic x86_64
ApportVersion: 1.23-0ubuntu4
Architecture: amd64
Date: Tue Dec 20 19:07:09 2011
EcryptfsInUse: Yes
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=en_CA:en
 PATH=(custom, user)
 LANG=en_CA.UTF-8
 SHELL=/bin/bash
SourcePackage: apt-listchanges
UpgradeStatus: Upgraded to oneiric on 2011-10-14 (67 days ago)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.