package kdesdk-scripts 4:4.13.0-0ubuntu1 failed to install/upgrade: trying to overwrite '/usr/bin/svn-clean', which is also in package subversion-tools 1.6.17dfsg-3ubuntu3.3

[Michael Schaller]

A Precise to Trusty dist-upgrade fails if the packages kdesdk-scripts and subversion-tools are installed.

Error:
Unpacking kdesdk-scripts (4:4.13.0-0ubuntu1) over (4:4.8.5-0ubuntu0.1) ...
dpkg: error processing archive /var/cache/apt/archives/kdesdk-scripts_4%3a4.13.0-0ubuntu1_all.deb (--unpack):
 trying to overwrite '/usr/bin/svn-clean', which is also in package subversion-tools 1.6.17dfsg-3ubuntu3.3

Reproduction instructions:
1) Install Ubuntu 12.04.4
2) sudo apt-get update
3) sudo apt-get dist-upgrade
4) sudo apt-get install kdesdk-scripts subversion-tools
5) sudo reboot
6) If you use a VM take a snapshot
7) sudo sed -i s/precise/trusty/g /etc/apt/sources.list
8) sudo apt-get update
9) sudo apt-get dist-upgrade 2>&1 | tee upgrade.log
The issue - the file collision - is deeply buried in the upgrade log.

ProblemType: Package
DistroRelease: Ubuntu 14.04
Package: kdesdk-scripts 4:4.13.0-0ubuntu1
ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9
Uname: Linux 3.13.0-24-generic x86_64
ApportVersion: 2.14.1-0ubuntu3
Architecture: amd64
Date: Wed Apr 30 14:21:25 2014
DuplicateSignature: package:kdesdk-scripts:4:4.13.0-0ubuntu1:trying to overwrite '/usr/bin/svn-clean', which is also in package subversion-tools 1.6.17dfsg-3ubuntu3.3
ErrorMessage: trying to overwrite '/usr/bin/svn-clean', which is also in package subversion-tools 1.6.17dfsg-3ubuntu3.3
InstallationDate: Installed on 2014-04-23 (7 days ago)
InstallationMedia: Ubuntu 12.04.4 LTS "Precise Pangolin" - Release amd64 (20140204)
PackageArchitecture: all
SourcePackage: kde-dev-scripts
Title: package kdesdk-scripts 4:4.13.0-0ubuntu1 failed to install/upgrade: trying to overwrite '/usr/bin/svn-clean', which is also in package subversion-tools 1.6.17dfsg-3ubuntu3.3
UpgradeStatus: No upgrade log present (probably fresh install)

[Michael Schaller (misch-9)]

Details:

Package: kdesdk-scripts
Installed version: 4:4.8.5-0ubuntu0.1
Candidate version: 4:4.13.0-0ubuntu1

Package: subversion-tools
Installed version: 1.8.8-1ubuntu3
Candidate version: 1.8.8-1ubuntu3

Conflicting files:
'/usr/bin/svn-clean'

So only one binary conflicts between these packages. Does kdesdk-scripts even need to ship svn-clean? If yes, how about just depending on the subversion-tools package?