Special character and wildcard matching

[Arun Rangarajan]

I have a string field raw_name like this in my document:

{raw_name: beyoncé}

(Notice that the last character is a special character.)

When I issue this wildcard query:

q=raw_name:beyonce*

i.e. with the last character simply being the ASCII 'e', Solr returns me
the above document.

How do I prevent this?