metadata_license
field but this does not match
its entry (possibly via the Files: *
stanza) in
debian/copyright
.
See-Also: https://wiki.debian.org/AppStream/Guidelines,
https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/,
https://www.freedesktop.org/software/appstream/docs/chap-Metadata.html#tag-metadata_license