Searching for glossary items using only one letter displays all of the glossary entries

Log in as Admin. Create a Course. Create a Glossary in the Course. Add at least one entry that doesn't contain the letter 'z' in the name or definition. Enter 'z' in the search box and perform a search. make sure no results are returned . Note for the tester: Glossary content can contain html syntax which is not visible to the users. This means when you search for something like "p", even if the "p" letter is not present in the context but a "<p>" tag is which is not visible to the user, the search will return results.