All reports of appstream-metadata-invalid for the archive. The extended description of this tag is:
The specified AppStream metadata file does not consist of valid XML.
Refer to https://wiki.debian.org/AppStream/Guidelines for details.
Severity: serious, Certainty: certain
Check: appstream-metadata, Type: binary
Emitted (non-overridden): 1, overridden: 0, total: 1
The package names link to the relevant maintainer page and the corresponding report for the source package. The links go to the full maintainer report page, which includes info and experimental tags and overridden tags, rather than the default page that shows only errors and warnings.
fonts-hack 3.003-2 (binary) (Debian Fonts Task Force <firstname.lastname@example.org>)