I update debian with dselect: Access + mounted + scan
(in dir /debian)
When I have two version of same pkg, dselect is
cunfused.

E.g.:
in /debian if I have:
A- libc6_2.1.2-11.deb
B- libc6-dev_2.1.2-10.deb
C- libc6-dev_2.1.2-11.deb
dselect find that the libc6 and libc6-dev are in
conflit, but when I press 'i' I see that the two
package are of the same version (2.1.2-11), and there
are not other possible conflits.

If there are not such conflits, dselect fails
installing or configuring the package. (this happen
with tetex-base I my case).

I think that 'scan' should scan package, and ignore
old packages.