package libpostproc52 6:0.git20120821-4 failed to install/upgrade: libpostproc52:amd64 6:0.git20120821-4 (Multi-Arq: no) no es co-instalable con libpostproc52 que tiene múltiples instancias instaladas

While upgrading from Ubuntu 13.10 to 14.04 64bits, i got an error with this library wich resulted in an incorrect update error.
after the update, restarting and doeing:

sudo apt-get update
sudo apt-get upgrade

gives me a failing dependencies error, suggesting to do apt-get -f install, did but not solved

Then I followed this racomendation: https://bugs.launchpad.net/ubuntu/+source/libav/+bug/1286836/comments/7 and did:

sudo dpkg --purge libpostproc52:i386
sudo apt-get install libpostproc52
sudo apt-get upgrade

and it worked.

Then, when restarting my computer again this error cames up, so I'm reporting it.

ProblemType: Package
DistroRelease: Ubuntu 14.04
Package: libpostproc52 6:0.git20120821-4
ProcVersionSignature: Ubuntu 3.13.0-24.47-generic 3.13.9
Uname: Linux 3.13.0-24-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.1
Architecture: amd64
Date: Tue May 20 11:56:30 2014
Dependencies:
 gcc-4.9-base 4.9-20140406-0ubuntu1
 libc6 2.19-0ubuntu6
 libgcc1 1:4.9-20140406-0ubuntu1
 multiarch-support 2.19-0ubuntu6
ErrorMessage: libpostproc52:amd64 6:0.git20120821-4 (Multi-Arq: no) no es co-instalable con libpostproc52 que tiene múltiples instancias instaladas
InstallationDate: Installed on 2013-01-31 (474 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
SourcePackage: libpostproc
Title: package libpostproc52 6:0.git20120821-4 failed to install/upgrade: libpostproc52:amd64 6:0.git20120821-4 (Multi-Arq: no) no es co-instalable con libpostproc52 que tiene múltiples instancias instaladas
UpgradeStatus: Upgraded to trusty on 2014-05-20 (0 days ago)