command-line properties not regarded sometimes

I'm attaching a sample project to show properties specified on the command-line (CLI) not being regarded when filtering true. These are being regarded for other purposes though.

Reproduce:
$ mvn test
$ cat target/test-classes/test.txt
Contents: default
$ mvn -P test.profile test
$ cat target/test-classes/test.txt
Contents: profile
$ mvn -Dtest.property='overridden' clean verify
Contents: default
$ mvn -P test.profile -Dtest.property='overridden' clean verify
Contents: profile

As you see last two results should have been "Contents: overridden".

The behavior is not completely broken though because if you try to set "test.include.pattern" then it works fine. Thus I set as component "filtering". This doesn't mean I've any idea where the issue lies. Test proj is a modified version of this on http://www.nabble.com/How-to-override-POM-properties-from-CLI-td15344487s177.html#a15605671