Merged V3.4-BUG-FIX to HEAD

32340: Fix for ALF-11737 (refix for ALF-11247) - After clicking on any list item action in Explorer there is no effect
   32341: Fix for ALF-9883 - WCM Forms: Changing 'abstract' type carries previously-added elements

git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@32344 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

source/java/org/alfresco/web/ui/repo/component/UIActions.java

@@ -103,10 +103,6 @@ public class UIActions extends SelfRenderingComponent
       this.showLink = (Boolean)values[2];
       this.verticalSpacing = (Integer)values[3];
       this.groups = new HashSet<String>(4);
-      
-      // when the state of the component is restored, clear the child list of components - they
-      // are always rebuilt on initial page render - otherwise the list will grow forever...
-      this.getChildren().clear();
    }
    
    /**
@@ -161,6 +157,20 @@ public class UIActions extends SelfRenderingComponent
          }
       }
       
+      // look to see if we built a component set for that component group on a previous render
+      // this will need removing from the child component set to ensure that it does not grow endlessly
+      for (Iterator i=getChildren().iterator(); i.hasNext(); /**/)
+      {
+         UIComponent child = (UIComponent)i.next();
+         if (contextId.equals(child.getAttributes().get("contextId")))
+         {
+            if (logger.isDebugEnabled())
+               logger.debug("***removing old child component set for contextId: " + contextId);
+            i.remove();
+            break;
+         }
+      }
+      
       String groupId = getValue();
       if (groupId != null && groupId.length() != 0)
       {