All reports of vcs-field-not-canonical for the archive. The extended description of this tag is:

The VCS-* field contains an uncanonical URI. Please update to use the current canonical URI instead. This reduces the network bandwidth used and makes debcheckout work independent of the port forwarding and redirections properly working.

Severity: minor, Certainty: possible

Check: fields, Type: binary, udeb, source

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