Normally i don't answer in threads that contain the word fix in hyphens - if one would take the time to read and understand the linked bug one would mention that apt might need a little bit help.
apt dist-upgrade libsane+
Easy, isn't it? Reason: libsane is a bit messed up - that means half of the packages need libsane the other half need libsane1. Things are a bit worse as libsane1 provide libsane - this is exactly the reason for the need of libsane+
We will see how and when this is fixed in debian, until then i decided to roll the needed packages back to libsane as dependency. It might be that i missed one or two packages, if so, please drop a line here.