This script calls invoke-rc.d to run an init script but then, if the init script fails, exits successfully (using || exit 0). If the init script fails, the maintainer script should probably fail.
The most likely cause of this problem is that the package was built with a debhelper version suffering from Bug#337664 that inserted incorrect invoke-rc.d code in the generated maintainer script. The package needs to be reuploaded (could be bin-NMUd, no source changes needed).
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 2ff4e94. For merge requests, please use the latest version in the Lintian check scripts.