All reports of extended-description-is-empty for the archive. The extended description of this tag is:

The extended description (the lines after the first line of the "Description:" field) is empty.

Refer to Debian Policy Manual section 3.4 (The description of a package) for details.

Severity: serious, Certainty: certain

Check: description, Type: binary, udeb

This tag has not been emitted in any package tested by Lintian.