OSIS-4728 fixed initial value of 'main_language' and 'main_domain'
OSIS-4728 fixed initial value of 'main_language' and 'main_domain'

uclouvain/osis,uclouvain/osis,uclouvain/OSIS-Louvain,uclouvain/osis,uclouvain/OSIS-Louvain,uclouvain/osis,uclouvain/OSIS-Louvain