The license paragraph in the machine-readable copyright file is not referenced by any files paragraph. It could be a typo in the license name or the license paragraph is simply not needed and can be removed.
For more information please consult:
The tag is present in Lintian version
That is the most recent version we know about.
We use semantic versions.
The patch number is a commit step indicator relative to the
release tag in our Git
You can find the detection logic for this version at commit 3410a22. For merge requests, please use the latest version in the Lintian check debian/copyright/dep5.