All reports of diff-contains-cvs-conflict-copy for the archive. The extended description of this tag is:
The Debian diff or native package contains a CVS conflict copy. These have file names like .#file.version and are generated by CVS when a conflict was detected when merging local changes with updates from a source repository. They're useful only while resolving the conflict and should not be included in the package.
This tag has not been emitted in any package tested by Lintian.