public void removeFromTargetConfigurations() {
   for (ConfigurationNode targetConfiguration : targetConfigurations) {
     targetConfiguration.removeIncomingEdge(this);
   }
   targetConfigurations.clear();
   if (targetModuleRevision != null) {
     selector.getSelectedModule().removeUnattachedDependency(this);
   }
 }
 public void removeFromTargetConfigurations() {
   for (ConfigurationNode targetConfiguration : targetConfigurations) {
     targetConfiguration.removeIncomingEdge(this);
   }
   targetConfigurations.clear();
 }