dpkg_status drops transitive dependencies for apt.install(dependency_set=...) (regression vs 0.8.0)

[RomanVlasenko]

While migrating from 0.8.0 to 0.9.5, we noticed that dpkg_status for a dependency_set only lists the packages explicitly passed to apt.install(dependency_set = "...", packages = [...]), not their transitive dependencies - even though the transitive packages' files are still installed in the generated layer.

Can you confirm whether this is expected, or if it's fixable?

[loosebazooka]

@thesayyn this might be related to #259 ? but this is part of the code I'm not super familiar with