django.utils.html.smart_urlquote() is incorrectly parsing the query string

[Denis Pechenev]

Query string like 'search_text=%D0%B4%D0%B6%D0%B8%D0%BD%D1%81%D0%BE%D0%B2%D1%8B%D0%B5+%D0%BA%D1%83%D1%80%D1%82%D0%BA%D0%B8' is already encoded. But smart_urlquote() encodes it again because of incorrect parsing in parse_qsl(). Value should be encoded with ASCII before parsing.

So there should be something like:

query_parts = [(unquote(force_str(q[0])), unquote(force_str(q[1])))
                       for q in parse_qsl(query.encode('ascii'), keep_blank_values=True)]