All reports of doc-base-document-field-not-in-first-line for the archive. The extended description of this tag is:
The Document field in doc-base control file must be located at first line of the file. While unregistering documents, doc-base 0.8 and later parses only the first line of the control file for performance reasons.
Refer to Debian doc-base Manual section 188.8.131.52 (The main section) for details.
This tag has not been emitted in any package tested by Lintian.