The tag is present in Lintian version 2.114.51. 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 e93bf57. For merge requests, please use the latest version in the Lintian check files/bugs.
The package contains a control directory for a bug tracking system. It was most likely installed by accident, since bug tracking directories usually don't belong in packages.