Comment 6 for bug 1964992

The correct logic shouldn't be hard to write, unless I'm missing something? So can we just do it right, and as soon as is necessary? If it's obviously correct, I don't think we need to wait for upstream acceptance, but equally it shouldn't take them long to review it either. Because the parameters are well-defined, and the correct validation is unambiguous. So diverging from upstream on the precise fix shouldn't matter as long as it is reviewed to be correct, and that shouldn't be difficult.