package git 1:2.1.4-2.1 failed to install/upgrade: package git is already installed and configured

[doug nusbaum]

I have no idea

ProblemType: Package
DistroRelease: Ubuntu 15.04
Package: git 1:2.1.4-2.1
ProcVersionSignature: Ubuntu 3.19.0-18.18-generic 3.19.6
Uname: Linux 3.19.0-18-generic x86_64
ApportVersion: 2.17.2-0ubuntu1.1
AptOrdering:
 ttf-mscorefonts-installer: Remove
 git-man: Configure
 liberror-perl: Configure
 git: Configure
 NULL: ConfigurePending
AptdaemonVersion: 1.1.1+bzr982-0ubuntu3
Architecture: amd64
Date: Sat Jun 6 19:18:14 2015
DuplicateSignature: package:git:1:2.1.4-2.1:package git is already installed and configured
ErrorMessage: package git is already installed and configured
InstallationDate: Installed on 2015-05-29 (8 days ago)
InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
RelatedPackageVersions:
 dpkg 1.17.25ubuntu1
 apt 1.0.9.7ubuntu4
SourcePackage: dpkg
Title: package git 1:2.1.4-2.1 failed to install/upgrade: package git is already installed and configured
UpgradeStatus: No upgrade log present (probably fresh install)