Unicode Topics get lost when titles use dashes ("-")>Wiki 4.5.0


I enter a new topic in Unicode characters with dashes, although it shows and functions correctly in index page, it doesn't work in other (inner) pages. There is a little strange: If I enter the name of the topic in Unicode it doesn't function but, if I enter it in its equivalent chars it functions correctly.
[[اشکالات نظام اداری - عوامل بروز اشکالات]] ==> This doesn't work, but the next one is its equivalent when displayed in the address bar of IE and surprisingly this works correctly (but hard to understand and edit!!):
Note 1: I also tested replacing the dash with a blank as it is displayed by Chrome and Firefox, but it doesn't function again.
Note 2: This didn't happen already, or I think it had been patched by modifying Stored Procedures as Mr Hammond said in debugging previous versions of the Wiki.
Note 3: You can find more example of this behavior online at: http://alihosseini.net/tabid/233/Default.aspx?topic=%DA%A9%D8%A7%D8%B1%D8%A8%D8%B1%D8%AF+%DA%AF%D8%B1%D8%A7%D9%86%D8%AF%D8%AF+%D8%AA%D8%A6%D9%88%D8%B1%DB%8C+%D8%AF%D8%B1+%D8%AA%D8%B9%DB%8C%DB%8C%D9%86+%D8%A7%D8%B4%DA%A9%D8%A7%D9%84%D8%A7%D8%AA+%D9%86%D8%B8%D8%A7%D9%85+%D8%A7%D8%AF%D8%A7%D8%B1%DB%8C
Closed Oct 8, 2013 at 4:26 PM by JosephAllen
4.5.5 fully supports Unicode characters in page names.