Extension defined in .mvn/extensions.xml failing "requirePluginVersions" check

I have defined the "maven-git-versioning-extension' in .mvn/extensions.xml with an explicit version.

 
<extensions xmlns="http://maven.apache.org/EXTENSIONS/1.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
{{ xsi:schemaLocation="http://maven.apache.org/EXTENSIONS/1.0.0 http://maven.apache.org/xsd/core-extensions-1.0.0.xsd">}}
  <extension>
    <groupId>me.qoomon</groupId>
    <artifactId>maven-git-versioning-extension</artifactId>
    <version>9.3.1</version>
  </extension>
</extensions>
This extension is not referenced anywhere in my POM.

However, the 'requirePluginVersions' check is failing during build.

NOTE: I saw MENFORCER-133 which was similiar but is already closed.

Currently I have the workaround to add "me.qoomon:maven-git-versioning-extension" to the "unCheckedPluginList" configuration option, but this is sort of annoying since we use this extension in almost all of our git projects.