WordPress permalink issue on AWS

This is Unicode and probably not the fault of WordPress or AWS. Read more at : https://superuser.com/questions/480692/copying-unicode-symbols-from-firefox-address-bar-as-is .
Top answer from there:

Try setting
 http://kb.mozillazine.org/Network.standard-url.escape-utf8 via
about:config http://kb.mozillazine.org/About%3aconfig

Possible values and their effects:

true – Escape UTF-8 URLs. (Default)false – Do not escape UTF-8 URLs.

That’s a firefox solution. You didn’t mention which browser you’re using.