requests: requests.get() blocks infinitely

I am trying to call requests.get(some_REST_API_call) on a Pico W (with v1.22.1) but this call blocks infinitely.
Using a timeout or non-blocking mode (timeout=0) doesn't help.
The call works with CPython and in Chrome and returns some small JSON.

When using self._cached = self.raw.recv(10000) instead of self._cached = self.raw.read()
in requests/__init__.py (line 20) the call works fine.

So shouldn't this read() be replaced with a loop which tries to recv(num_bytes)
until it read less than num_bytes and then stops?

Update: Tested this with a different kind of device (calling the ThingSpeak API with requests.post) and for that only read() works correctly. recv(num_bytes) yields no bytes.

requests/init.py の20行目付近から始め、説明されている Pico W requests.get と requests.post のケースを再現します。raw.read() と raw.recv(10000) のブロッキング動作と返されるデータを、timeout=0 の場合も含めて比較します。完了とは、各デバイスで現在機能しているレスポンスの動作を維持しながら、対象の呼び出しがハングせずに完了することです。