Wikimedia Bugzilla is closed!

The AJAX search autosuggestion incorrectly handles some inputs:
* High ASCII (Latin-1) characters (U+0080 through U+00FF) are encoded to %xx and then incorrectly used literally 
instead of conversion to UTF-8.
* The plus character (+) is passed unencoded, and is decoded to space server-side.

In addition, a few minor issues:
* GUI displays "low-level" search string with underscores instead of spaces.
* The search does not handle duplicate and leading/trailing spaces.