All reports of diff-contains-hg-tags-file for the archive. The extended description of this tag is:

The Debian diff or native package contains an .hgtags file. This file is Mercurial metadata that should normally not be distributed. It stores hashes of tagged commits in a Mercurial repository and isn't therefore useful without the repository.

Severity: normal, Certainty: certain

Check: cruft, Type: source

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