Terms transfer source language problem

When transferring terms for translation from TermPortal to main Translate5 app, there is a check whether all terms to be transferred belong to the same source language, which is picked as TermPortal's current term-search language, and prior check is made base-language is detected for all terms' languages, so that base language is compared to current term-search language. The bug happend when current term-search language is a sublanguage, so that it's not equal to base-language of term(s). This should be fixed by using base-language of current term-search language for that comparison.