Site.yaml routes ignored

Hi,
in my multi-language grav project the routes defined in site.yaml are ignored or not working.

e.g.
//localhost/grav/en-US/something/en-US/else
should be routed to
//localhost/grav/en-US/something/else

therefore I created the following routes block in site.yaml as described in http://learn.getgrav.org/content/routing

routes:
  /something/en-US/(.*): '/something/$1'

I tried to configue it via admin plugin and without regex but nothing worked.

When I configure the default route in the page itself, it works perfectly.

Can you please create an issue for this here: https://github.com/getgrav/grav/issues

Thanks!

done