public void restart(ModuleVersionResolveState selected) {
   select(selected);
   for (ModuleVersionResolveState version : versions.values()) {
     version.restart(selected);
   }
   for (DependencyEdge dependency : new ArrayList<DependencyEdge>(unattachedDependencies)) {
     dependency.restart(selected);
   }
   unattachedDependencies.clear();
 }
 public void restart(ModuleVersionResolveState selected) {
   // Restarting this configuration after conflict resolution.
   // If this configuration belongs to the select version, queue ourselves up for traversal.
   // If not, then move our incoming edges across to the selected configuration
   if (moduleRevision == selected) {
     resolveState.onMoreSelected(this);
   } else {
     for (DependencyEdge dependency : incomingEdges) {
       dependency.restart(selected);
     }
     incomingEdges.clear();
   }
 }