The given, apparently compressed, file is shipped in the package in addition to another file with the same name without the compression-method extension. Normally this indicates a mistake in the installation process of the package.
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 02df726. For merge requests, please use the latest version in the Lintian check files/compressed.