libunity9 7.1.4+17.10.20170605-0ubuntu1: File conflict in Multi-Arch: same package

[bouet]

cannot upgrade because of this

ProblemType: Package
DistroRelease: Ubuntu 17.10
Package: libunity9 7.1.4+17.10.20170605-0ubuntu1
ProcVersionSignature: Ubuntu 4.13.0-30.33-generic 4.13.13
Uname: Linux 4.13.0-30-generic x86_64
ApportVersion: 2.20.7-0ubuntu3.7
AptOrdering:
 libunity9:i386: Install
 NULL: ConfigurePending
Architecture: amd64
Date: Sun Feb 4 15:42:43 2018
DpkgHistoryLog:
 Start-Date: 2018-02-04 15:42:29
 Commandline: apt --fix-broken install
 Requested-By: bouet (1000)
 Install: libunity9:i386 (7.1.4+17.10.20170605-0ubuntu1, automatic)
ErrorMessage: tentative de remplacement de « /usr/bin/unity-scope-loader », qui est différent d'autres instances du paquet libunity9:i386
InstallationDate: Installed on 2017-06-02 (246 days ago)
InstallationMedia: Ubuntu 16.10 "Yakkety Yak" - Release amd64 (20161012.2)
Python3Details: /usr/bin/python3.6, Python 3.6.3, python3-minimal, 3.6.3-0ubuntu2
PythonDetails: /usr/bin/python2.7, Python 2.7.14, python-minimal, 2.7.14-2ubuntu1
RelatedPackageVersions:
 dpkg 1.18.24ubuntu1
 apt 1.5.1
SourcePackage: libunity
Title: package libunity9 7.1.4+17.10.20170605-0ubuntu1 failed to install/upgrade: tentative de remplacement de « /usr/bin/unity-scope-loader », qui est différent d'autres instances du paquet libunity9:i386
UpgradeStatus: No upgrade log present (probably fresh install)