When using the "Politics & Intrigue" the amp isn't getting escaped when converted to an address.

https://j-novel.club/series?search=tag:"politics & intrigue"

Becoming this: A
https://j-novel.club/series?search=tag:%22politics%20&%20intrigue%22

Instead of: B
https://j-novel.club/series?search=tag:%22politics%20%26%20intrigue%22

After a bit more investigation, it seems like using the tag directly in https://j-novel.club/series search bar
tag:"politics & intrigue", fails.
tag:"politics %26 intrigue", succeeds.

I tried to do some other special characters like tag:";" however, I immediately got a bad gateway error. So I either crashed the server a little or cloudflare refused the malformed address. I'll stop playing with it now.