All reports of package-has-a-duplicate-build-relation for the archive. The extended description of this tag is:

The package declares the given build relations on the same package in either Build-Depends or Build-Depends-Indep, but the build relations imply each other and are therefore redundant.

Severity: normal, Certainty: possible

Check: fields, Type: binary, udeb, source

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