package overview page incorrectly shows info for unrelated package

[cverna]

initially reported in https://pagure.io/fedora-infrastructure/issue/8443

Description of problem:
On https://apps.fedoraproject.org/packages/munge/, the overview, upstream, and package tree information incorrectly refers to the completely unrelated munge-maven-plugin project.

There is a general problem that builds from packages that could be a subpackage are shown at the wrong place.

Examples:

https://src.fedoraproject.org/rpms/munge

Release Stable version Version in testing
Fedora 32 munge-0.5.13-6.fc32
Fedora 31 munge-maven-plugin-1.0-14.fc31 munge-0.5.13-5.fc31
Fedora 30 munge-maven-plugin-1.0-13.fc30

https://src.fedoraproject.org/rpms/rakudo

Release Stable version Version in testing
Fedora 32 rakudo-0.2019.11-2.fc32
Fedora 31 rakudo-MIME-Base64-1.2.1-6.fc31 rakudo-0.2019.11-2.fc31

[pypingou]

I think the underlying issue is with mdapi, source of info for both of these apps: https://pagure.io/pagure-dist-git/issue/85