--fix-uri no does not turn off check

fix-uri:
> This option specifies if Tidy should check attribute values
> that carry URIs for illegal characters and if such are found, escape
> them as HTML4 recommends.

OK  but ```--fix-uri no``` still gives
```
/tmp/v.html:86:113: Warning: <a> improperly escaped URI reference
```
on e.g.,
```
<a href="https://zh.wikipedia.org/wiki/台灣積體電路製造">台積電</a>
```