private void UpdateLifeCycleRules(UpdateDistribution command, Distribution distribution)
{
(IList <string> newRules, IList <string> oldRules) =
collectionsComparer
.Compare(distribution.LifeCycleStateRules, command.LifeCycleStateRules);
distribution.AddLifeCycleStateRules(newRules);
distribution.RemoveLifeCycleStateRules(oldRules);
}