Rules were not broken. They explained to rules to us very carefully. We are allowed to pass bottles around to other competitors as long as it was picked up at the aid stations. You are not allowed to receive any fluids from any other place. People were passing around the rags with water as well.
Yes, we (coaches and athletes) were told in the technical meeting that runners could share water bottles and even special fluid bottle (although they said that was at the runners own risk) As for pacing the only thing that was brought was when runners were being lapped they could not be paced by runners lapping them.