sporked ugen instance and assign no sound

[gewang]

ugens created and assigned on sporked shred, connected outside, no sound
macOS, ventura, M1, repro on 1.5.1.7, 1.5.0.1

SinOsc @ s;

fun void foo()
{
    new SinOsc @=> s;
    440 => s.freq;
    .25 => s.gain;
    <<< Machine.refcount(s) >>>;
}

spork ~ foo();
me.yield();

s => dac;

while( true ) 1::second => now;