NOTE: Test with enables In-Link module
1. Create new category and new link with same word in titles in admin
2. Search for this word and confirm both found
3. In DB directly set category ResourseId equals to link's ResourseId
4. Search by some word that exists only in category title
5. Confirm there is no link in search results
6. Search by some word that exists only in link title
7. Confirm there is no category in search results