Comment 5 for bug 1648055

TBH I'm not sure this is a 5.0 thing (or at least to get it completely resolved). I don't think the conditional DRC (to allow for castellated boards) would be a trivial change.

I vote we either bump this to 6.0, or add the simplest possible fix for 5.0: an optional DRC to check tracks against edge cuts. People making castellated boards can either turn the option off or just ignore the errors caused by the castellations.