fix set_best_lang when running tests
fix set_best_lang when running tests

mvidalgarcia/indico,mic4ael/indico,pferreir/indico,DirkHoffmann/indico,indico/indico,pferreir/indico,OmeGak/indico,ThiefMaster/indico,mvidalgarcia/indico,DirkHoffmann/indico,pferreir/indico,mvidalgarcia/indico,OmeGak/indico,mvidalgarcia/indico,pferreir/indico,DirkHoffmann/indico,OmeGak/indico,indico/indico,DirkHoffmann/indico,OmeGak/indico,ThiefMaster/indico,mic4ael/indico,ThiefMaster/indico,indico/indico,mic4ael/indico,indico/indico,mic4ael/indico,ThiefMaster/indico