Does not work with multisites

In the documentation under 'Example use cases' it explains why to use Pathologic. Quote "The address of your site has changed. Perhaps you moved to a shiny new domain name, or perhaps you moved the Drupal installation from one subdirectory to another."

That's my case.

My old multisite path to images:
/sites/site1.localhost/files/image.png
My new multisite path to images:
/sites/site2.localhost/files/image.png

In Pathologic we select Path relative to root server and enter in first line:
/sites/site1.localhost/
Second line:
/sites/site2.localhost/

Result:
/files/image.png

So, all it does, it just strips the /sites/site1.localhost/ from path and doesn't replace with /sites/site2.localhost/