Resource changeInformation = graph.getPossibleResource("http://www.simantics.org/Modeling-1.2/changeInformation/Inverse");
for (Resource value : parameter.changedValues()) {
+ if(!value.isPersistent()) continue;
Statement modifiedComponent = graph.getPossibleStatement(value, l0.PropertyOf);
if (modifiedComponent == null
|| modifiedComponent.getPredicate().equals(changeInformation))