Bug#547788: apt: apt-get install <virtual> gets confused with multiple available versions

[Marius Vollmer <marius.vollmer@nokia.com>]

ext Goswin von Brederlow <goswin-v-b@web.de> writes:

> It even gets confused if multiple packages of the same version are
> available. This can happen if proposed-updates and security have the
> same version but different builds (and therefore checksums) of a
> package.
>
> Have you considered what happens then?

My patch ignores all package versions that are not a installation
candidate.  Since only one of the versions of a package can be the
candidate, my patch should also handle your situation.