The tag is present in Lintian version 2.104.234. That is the most recent version we know about.
This source package encodes a Python version in its name such
This could result in a misleading future situation where this source package supports multiple versions as well unnecessary given that the binary package names will typically encode the supported versions.
Please override this tag with a suitably-commented override if there is no single upstream codebase that supports both versions.