All reports of substvar-source-version-is-deprecated for the archive. The extended description of this tag is:

The package uses the now deprecated ${Source-Version} substvar, which has misleading semantics. Please switch to ${binary:Version} or ${source:Version} as appropriate (introduced in dpkg 1.13.19, released with etch). Support for ${Source-Version} may be removed from dpkg-dev in the future.

Severity: normal, Certainty: certain

Check: version-substvars, Type: source

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