chameleon action can't be a group

platform/platform-impl/src/com/intellij/openapi/actionSystem/impl/ChameleonAction.java

@@ -29,7 +29,7 @@ import java.util.Map;
 /**
  * @author Dmitry Avdeev
  */
-public class ChameleonAction extends ActionGroup {
+public class ChameleonAction extends AnAction {
 
   private final Map<ProjectType, AnAction> myActions = new HashMap<ProjectType, AnAction>();
 
@@ -54,13 +54,6 @@ public class ChameleonAction extends ActionGroup {
     action.actionPerformed(e);
   }
 
-  @NotNull
-  @Override
-  public AnAction[] getChildren(@Nullable AnActionEvent e) {
-    AnAction action = getAction(e);
-    return action instanceof ActionGroup ? ((ActionGroup)action).getChildren(e) : EMPTY_ARRAY;
-  }
-
   @Override
   public void update(@NotNull AnActionEvent e) {
     AnAction action = getAction(e);