package po4a not installed failed to install/upgrade: trying to overwrite /usr/share/man/fr/man1 , which is also in package menu 2.1.46ubuntu1

[RegPerrin]

simply doing sudo su, apt-get update, apt-get upgrade
always get the error message about man-db

ProblemType: Package
DistroRelease: Ubuntu 13.04
Package: po4a (not installed)
ProcVersionSignature: Ubuntu 3.8.0-26.38-generic 3.8.13.2
Uname: Linux 3.8.0-26-generic x86_64
NonfreeKernelModules: fglrx
ApportVersion: 2.9.2-0ubuntu8.2
Architecture: amd64
Date: Sat Jul 6 14:01:19 2013
DuplicateSignature: package:po4a:(not installed):trying to overwrite '/usr/share/man/fr/man1', which is also in package menu 2.1.46ubuntu1
ErrorMessage: trying to overwrite '/usr/share/man/fr/man1', which is also in package menu 2.1.46ubuntu1
InstallationDate: Installed on 2011-10-17 (627 days ago)
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
MarkForUpload: True
SourcePackage: po4a
Title: package po4a (not installed) failed to install/upgrade: trying to overwrite '/usr/share/man/fr/man1', which is also in package menu 2.1.46ubuntu1
UpgradeStatus: Upgraded to raring on 2013-04-26 (70 days ago)

[Martin Quinson (mquinson)]

I think that this bug can be closed, because if it could be reproduced, it would make the package uninstallable. Instead, po4a passes all piupart tests.