package libkf5su-data (not installed) failed to install/upgrade: trying to overwrite '/usr/share/locale/sl/LC_MESSAGES/kdesud5.mo', which is also in package libkf5su5:amd64 5.9.0-0ubuntu1

Installing upgrade using synaptic. Was just browsing the msystem menu. Nothing ele running.

ProblemType: Package
DistroRelease: Ubuntu 15.10
Package: libkf5su-data (not installed)
ProcVersionSignature: Ubuntu 3.19.0-20.20-generic 3.19.8
Uname: Linux 3.19.0-20-generic x86_64
NonfreeKernelModules: vboxpci vboxnetadp vboxnetflt vboxdrv
ApportVersion: 2.17.3-0ubuntu3
Architecture: amd64
Date: Fri Jun 5 14:55:20 2015
DuplicateSignature: package:libkf5su-data:(not installed):trying to overwrite '/usr/share/locale/sl/LC_MESSAGES/kdesud5.mo', which is also in package libkf5su5:amd64 5.9.0-0ubuntu1
ErrorMessage: trying to overwrite '/usr/share/locale/sl/LC_MESSAGES/kdesud5.mo', which is also in package libkf5su5:amd64 5.9.0-0ubuntu1
InstallationDate: Installed on 2015-05-13 (22 days ago)
InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Alpha amd64 (20150512)
RelatedPackageVersions:
 dpkg 1.17.25ubuntu1
 apt 1.0.9.10ubuntu1
SourcePackage: kdesu
Title: package libkf5su-data (not installed) failed to install/upgrade: trying to overwrite '/usr/share/locale/sl/LC_MESSAGES/kdesud5.mo', which is also in package libkf5su5:amd64 5.9.0-0ubuntu1
UpgradeStatus: No upgrade log present (probably fresh install)