Farsi in URL wrongly encoded to "Double UTF-8"

[manu-cyber]

I encountered an issue where Farsi characters are encoded incorrectly.

The quote below contains pretty much every information I know about the topic, but I’m happy to answer additional questions if I can.

17:13:18 <JAA> c3manu: Re 8c1e0e2phxz76zhg3famykftb, not entirely sure what's going on there. https://paydarymelli.ir/fa/tag/1/%D8%AF%D8%A7%D8%B9%D8%B4%DB%8C redirects to 'Location: /fa/tags/1114/1/داعشی', which wpull then encodes as https://paydarymelli.ir/fa/tags/1114/1/%C3%98%C2%AF%C3%98%C2%A7%C3%98%C2%B9%C3%98%C2%B4%C3%9B%C2%8C rather than https://paydarymelli.ir/fa/tags/1114/1/%D8%AF%D8%A7%D8%B9%D8%B4%DB%8C
17:13:24 <JAA> for some reason, i.e. double UTF-8.
17:13:43 <JAA> I guess it's the same class of issue we've seen before regarding unencoded Location headers.

cc @JustAnotherArchivist