ffmpeg ignores -seekable 0 when requesting hls key

[mmis1000]

Summary of the bug:
How to reproduce:

% ffmpeg -v debug -seekable 0 -icy 0 -f hls -i 'https://path-to-hls.host/manifest' test.mp4
ffmpeg version 4.4.2-0ubuntu0.22.04.1 Copyright (c) 2000-2021 the FFmpeg developers

...

[https @ 0x5b494dcf0700] request: GET /manifest HTTP/1.1
Accept: */*
Connection: close
Host: path-to-hls.host

...

[https @ 0x5b494dcfbf00] request: GET /key HTTP/1.1
Accept: */*
Range: bytes=0-
Connection: keep-alive
Host: path-to-hls.host

The manifest itself does obey -seekable 0 and not sent with range header. But the key file always send with range header no matter you set it as seekable or not and also there is no other way to disable range header.