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This step is required for the protocol setter only, so it's better to place it after "4. If state override is given":
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Ah, yes, I think I agree with this.
And while we're in the area, is there a reason resetting buffer (3) is necessary before returning from a state override (4)?
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@rmisev It's sort of odd to see "Return" on its own line, which was why I refrained from this style initally, but that's fine with me.
@GPHemsley not particularly. Changed.