UDP access output port setting is not used

When selecting a port with udp access output, the client (the one who listens) doesn't receive any data

on the server:
vlc file.mp3 --sout "#std{access=udp,mux=raw,dst=127.0.0.1:12345}"

on the client:
vlc udp://127.0.0.1:12345

doesn't receive the data (and the streamer complains that connection is refused)

vlc udp://127.0.0.1
works as expected

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