I manually installed the cloner plugin (189235_cloner-1.1.zip) and tried to copy one of my sites which has 45 pages between 3 different languages translated with WPML.
1. When I clicked clone site, it took me back to my dashboard. And when I tried to access the new URL it started the cloning process.
2. Once everything was completed I get only 20 pages between 3 languages and some of the pages seem to have changed languages.
I tried performing the same copy again, and received the same result.