So, the rule is stop and put one foot on the ground? I don't want to nit-pick, but is that really necessary?
Please understand, I'm not talking about turning a "stop" into a, "yield." I'm turning a "put your foot down" into a "stay ready while standing" mode, which requires rolling just a tiny bit,
though I've seen many cyclists who can stand balanced almost indefinitely without rolling.
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No worries