"new static" is incorrectly reported as a package relation to global

PhpMetrics - version 2.5.0.

I have a code like "new static(...<some args here>...)"
If I open the "Package Relations" page I see a reference to the global package (that's wrong).
If I change the code to "new self(...<some args here>...)" everything is reported correctly - there is no reference to the global package (as expected).
