pkg/53970: py-gobject pkg broken

[martin%NetBSD.org@localhost]

>Number:         53970
>Category:       pkg
>Synopsis:       py-gobject pkg broken
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    pkg-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue Feb 12 15:35:00 +0000 2019
>Originator:     Martin Husemann
>Release:        NetBSD 8.99.34
>Organization:
The NetBSD Foundation, Inc.
>Environment:
System: NetBSD painkiller.duskware.de 8.99.34 NetBSD 8.99.34 (GENERIC64) #41: Mon Feb 11 16:51:45 CET 2019 martin%seven-days-to-the-wolves.aprisoft.de@localhost:/work/src/sys/arch/evbarm/compile/GENERIC64 evbarm
Architecture: aarch64
Machine: evbarm
>Description:

Building with PYTHON_VERSION_DEFAULT=37 runs into situation where pkgs
force py27-* dependendencies if they can not deal with newer python.

This usually works, but currently breaks w/o any good reason:

===> Installing binary package of py37-gobject-2.28.7nb1
pkg_add: Package `py37-gobject-2.28.7nb1' conflicts with `py27-gobject-[0-9]*', and `py27-gobject-2.28.7nb1' is installed.
pkg_add: Installed package `py27-gobject-2.28.7nb1' conflicts with `py37-gobject-[0-9]*' when trying to install `py37-gobject-2.28.7nb1'.
pkg_add: 1 package addition failed


>How-To-Repeat:
s/a

>Fix:
Make the two variants not conflict - the conflicting files should not be part
of this pkg at all!