Cache insn′t cleared with multiple domains and WPML

I have found a probem that should be easy to fix for the plugin author.

When u use WPML and multiple domains, the cache folder gets one subfolder for each domain.

The problem is when u clear the cache, it only clears the sub folder which is the main domain. The others remain, so now I have to delete them manually every time content of other lanugages is updated.

https://www.ads-software.com/plugins/wp-super-cache/