/**
  * @param $name
  * @param $domain
  *
  * @return string
  */
 public function get_source_lang($name, $domain)
 {
     $domain_lang = $this->lang_of_domain->get_language($domain);
     if (!$domain_lang) {
         $flag = 0 === strpos($domain, 'admin_texts_') || 'Tagline' === $name || 'Blog Title' === $name;
         $domain_lang = $flag ? $this->sitepress->get_user_admin_language(get_current_user_id()) : 'en';
     }
     return $domain_lang;
 }