Wrong input in defaults.list

[AO]

Not sure where to file this under, but in Raring, in /etc/gnome/defaults.list appears the following for banshee after installation (of course banshee is not installed by default):
x-content/audio-dvd=banshee-audiocd.desktop

ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: ubuntu-desktop 1.298
ProcVersionSignature: Ubuntu 3.8.0-16.26-generic 3.8.5
Uname: Linux 3.8.0-16-generic x86_64
ApportVersion: 2.9.2-0ubuntu5
Architecture: amd64
Date: Wed Apr 3 03:25:02 2013
MarkForUpload: True
ProcEnviron:
 LANGUAGE=fr_CA:fr
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=fr_CA.UTF-8
 SHELL=/bin/bash
SourcePackage: ubuntu-meta
UpgradeStatus: No upgrade log present (probably fresh install)

[Sebastien Bacher (seb128)]

thanks, that's not really an issue though since it seems no other software claim handling that type, it would just tell the system to prefer banshee if that and another alternative were installed