Adaptive streaming crashes VLC when forcing resolution lower than lowest available

For example:

vlc https://www.youtube.com/user/ABCNews/live --adaptive-maxheight 1

This results in a segmentation fault in libadaptive_plugin.so. The lowest resolution offered for this stream is apparently 256x144, and setting any value of --adaptive-maxheight or --adaptive-maxwidth below this results in a crash.

This was tested on 3.0.11.1. I haven't got the time to produce and study a stacktrace for now, but I don't think it should be difficult to reproduce.

This also blocks #21828 (closed), as fixing it before this would increase the exposure to this crash and break some existing setups.

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