Bug#725435: trying to overwrite shared '/etc/sane.d/gt68xx.conf', which is different from other instances of package libsane:amd64

[Sandro Tosi <morph@debian.org>]

Package: libsane
Version: 1.0.23-3
Severity: grave

Hello,
when installing gnome, libsane fails to be installed due to:

Unpacking libsane:amd64 (from .../libsane_1.0.23-3_amd64.deb) ...
dpkg: error processing /var/cache/apt/archives/libsane_1.0.23-3_amd64.deb (--unpack):
 trying to overwrite shared '/etc/sane.d/gt68xx.conf', which is different from other instances of package libsane:amd64
 dpkg-deb: error: subprocess paste was killed by signal (Broken pipe)

Regards,
Sandro

-- System Information:
Debian Release: jessie/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (500, 'testing'), (500, 'stable'), (500, 'oldstable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 3.10-3-amd64 (SMP w/8 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash