Wrong links in modules overview page if module artifactId does not match directory structure

The site plugin docs state that 'If subprojects inherit the site URL from a parent POM, they will automatically append their <artifactId> to form their effective deployment location.' However, the modules overview page created by the pir plugin apparently uses the sub-modules directory names instead of the artifactId, leading to wrong links if the artifactId is different from the module name. The links in the modules menu (which is created by the site plugin) is correct.