SourcePackage.summary describes the earliest release in the series

[Hans Joachim Desserud]

Steps to reproduce:
1. Open a package's DistributionSourcePackage:+index or SourcePackage:+index page, for instance https://launchpad.net/ubuntu/+source/python-pygit2

Expected behaviour:
The binary packages should be listed under the package title on the overview page. Presumably the list should be based on the latest uploaded version.

Actual behaviour:
It looks like lately the list of binary packages isn't generated or updated.

For instance https://launchpad.net/ubuntu/+source/python-pygit2 which was recently uploaded to Ubuntu for the first time, has no binary packages listed. Compare with https://tracker.debian.org/pkg/python-pygit2 which lists the three binary packages it produces.

I've also seen cases where for example https://launchpad.net/ubuntu/+source/kpackage contains a list of binary packages, but it doesn't include libkf5package-data which is now built https://launchpad.net/ubuntu/+source/kpackage/5.10.0-0ubuntu2

This is because SourcePackage.summary always lists the binaries for the earliest release in the series. For python-pygit2 it FTBFS on all architectures, and kpackage's missing binary was added later.