python- sub-packages not handled correctly

[afaerber]

Imagine a base package foo which has a sub-package python-foo.

The %python_subpackages macro generates packages python2-foo and python3-foo so that the build succeeds, but their metadata (description, Provides/Obsoletes) is copied from foo.

Expection would be that python*-foo metadata gets derived from python-foo.

Example: https://build.opensuse.org/package/show/home:a_faerber:branches:devel:tools:statica/z3

[afaerber]

This also appears to be the explanation why python-foo-bar sub-package does not result in python3-foo-bar etc. sub-packages getting defined, causing an error from %{python_files bar}.