multidict 6.5.0 causes [httpie cli](https://github.com/httpie/cli/) to behave erratically. Downgrading to multidict 6.4.4 works around the problem. Please see https://github.com/httpie/cli/issues/1637 for details. However I don't know if the problem is because of a bug in httpie or multidict.