Bug#204780:

[Dan Jacobson <jidanni@jidanni.org>]

Let's take another look,

# apt-get remove -s libgphoto2-port0
The following extra packages will be installed:
  libexif9
The following packages will be REMOVED:
  libgphoto2-2 libgphoto2-2-dev libgphoto2-port0 libsane libsane-dev python2.2-imaging-sane
  sane xsane
The following NEW packages will be installed:
  libexif9

Above, we immediately we see that libexif9 has been repeated once as "extra",
again as "NEW".

0 packages upgraded, 1 newly installed, 8 to remove and 259 not upgraded.
Remv libsane-dev (1.0.12-6 Debian:unstable)
Remv xsane (0.91-5 Debian:unstable)
Remv sane (1.0.11-2 Debian:unstable)
Remv python2.2-imaging-sane (1.1.4-1 Debian:unstable)
Remv libsane (1.0.12-6 Debian:unstable)
Remv libgphoto2-2-dev (2.1.2-2 Debian:unstable)
Remv libgphoto2-2 (2.1.2-2 Debian:unstable)
Remv libgphoto2-port0 (2.1.2-2 Debian:unstable)
Inst libexif9 (0.5.10-2 Debian:unstable)
Conf libexif9 (0.5.10-2 Debian:unstable)

Can you try reproducing the bug again using the exact versions as above.

> I downgraded my libexif9 to 0.5.10-1 to make it upgradable to
> 0.5.10-2

Whereas I don't have libexif9 installed
$ dpkg -l |grep libexif
ii  libexif-dev    0.5.9-4        The EXIF library allows you to parse an EXIF
ii  libexif5       0.5.3-1        The EXIF library allows you to parse an EXIF
ii  libexif8       0.5.9-4        The EXIF library allows you to parse an EXIF
Rather than send the large files, here's what I have installed:
http://jidanni.org/tmp/dpkg-l.zip