Currently, search results in the BackOffice are shown in their main language despite typing a phrase which comes from its translation.
Steps to reproduce:
1. Add a new language to your admin SiteAccess in ezplatform.yml and in the Admin Panel, e.g. pl-PL.
2. Create new content and name it "test eng".
3. Add a new translation to this content and name it "test pl".
4. Go to search.
5. Type "pl" and hit "Search".
When the Legacy search engine is configured you will be presented with test eng result as this is the content main language.
When Solr search engine is in place you will have no search results.