package libsane-common 1.0.25+git20150528-1ubuntu2 failed to install/upgrade: trying to overwrite '/etc/sane.d/hp.conf', which is also in package libsane:amd64 1.0.23-3ubuntu3.1 this crash happened after an interrupted upgrade from 14.04 to 16.04

this might be connected to another crash that caused an interrupted upgrade from 14.04 to 16.04:

When I was trying to do the upgrade, when I was still in ubuntu 14.04 after the installer had downloaded all of its packages and I think it was starting to do some modifications I'm not sure what, while I was waiting for this to finish , I was watching a movie on vlc and I accidentally pressed the windows key which is supposed to bring up this window with search your computer and right after this key pressed the system froze - there was no reaction from any keystroke or mouse action - even after waiting for 2-3 minutes after the freeze. So I did the forced shutdown by holding the powerbutton for 5 seconds.

after this I followed the instructions on the an ubuntu help page of how to deal with this interrupted upgrade (this one: http://serverfault.com/questions/8540/recover-from-shutdown-during-ubuntu-distribution-upgrade

and then after upgrading also this one: http://askubuntu.com/questions/657940/how-to-resume-the-interrupted-upgrade-from-14-10-to-15-04)

and I successfully upgraded... I think. I rebooted the system after the upgrade and then this program crash happened. I don't know how it affects the OS because everything seems to be working ok so far.

Thank you for taking the time to solve this !

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: libsane-common 1.0.25+git20150528-1ubuntu2
ProcVersionSignature: Ubuntu 4.4.0-43.63-generic 4.4.21
Uname: Linux 4.4.0-43-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
Date: Wed Oct 19 04:40:03 2016
DuplicateSignature:
 package:libsane-common:1.0.25+git20150528-1ubuntu2
 Unpacking libsane-common (1.0.25+git20150528-1ubuntu2) over (1.0.23-3ubuntu3.1) ...
 dpkg: error processing archive /var/cache/apt/archives/libsane-common_1.0.25+git20150528-1ubuntu2_all.deb (--unpack):
  trying to overwrite '/etc/sane.d/hp.conf', which is also in package libsane:amd64 1.0.23-3ubuntu3.1
ErrorMessage: trying to overwrite '/etc/sane.d/hp.conf', which is also in package libsane:amd64 1.0.23-3ubuntu3.1
InstallationDate: Installed on 2016-01-30 (262 days ago)
InstallationMedia: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
PackageArchitecture: all
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.1
 apt 1.2.12~ubuntu16.04.1
SourcePackage: sane-backends
Title: package libsane-common 1.0.25+git20150528-1ubuntu2 failed to install/upgrade: trying to overwrite '/etc/sane.d/hp.conf', which is also in package libsane:amd64 1.0.23-3ubuntu3.1
UpgradeStatus: Upgraded to xenial on 2016-10-18 (0 days ago)