There are many cases that an entire RTL enabled course with RTL content is including some course modules with English names. (see screen capture)
Using the Boost theme, English course module name breaks quick inline module name edit and also mis display the module's size (in case of a file resource)

See screen capture of current issue and needed fix.

Suggesting:

span.instancename {

   /*rtl:raw:

        unicode-bidi: plaintext;

    */   

}