--- a/openide.loaders/src/org/openide/loaders/FolderLookup.java	Tue Jul 23 10:04:56 2013 +0200
+++ a/openide.loaders/src/org/openide/loaders/FolderLookup.java	Wed Jul 24 10:56:52 2013 +0200
@@ -414,6 +414,10 @@ 
                 return;
             }
             
+            if (template.getType().getSimpleName().contains("LookupProvider")) {
+                System.err.println("trying to obtain " + template.getType());
+            }
+            
             // do not wait in folder recognizer, but in all other cases
             if (
                 !FolderList.isFolderRecognizerThread() &&
--- a/openide.util.lookup/src/org/openide/util/lookup/ProxyLookup.java	Tue Jul 23 10:04:56 2013 +0200
+++ a/openide.util.lookup/src/org/openide/util/lookup/ProxyLookup.java	Wed Jul 24 10:56:52 2013 +0200
@@ -539,6 +539,19 @@ 
          * @return the collection or set of the objects
          */
         private Collection computeResult(int indexToCache, boolean callBeforeLookup) {
+            Collection c = computeResultIMpl(indexToCache, callBeforeLookup);
+            if (this.weakL.result.template.getType().getSimpleName().contains("LookupProvider")) {
+                System.err.print("lookup: " + this.weakL.result.proxy.getClass());
+                System.err.println("@" + Integer.toHexString(System.identityHashCode(this.weakL.result.proxy)));
+                System.err.println("  thread: " + Thread.currentThread().getName());
+                for (Lookup  lkp : this.data.getLookups(false)) {
+                    System.err.println("  delegates to " + lkp.getClass() + "@" + Integer.toHexString(System.identityHashCode(lkp)));
+                }
+                System.err.println("  ret: " + c);
+            }
+            return c;
+        }
+        private Collection computeResultIMpl(int indexToCache, boolean callBeforeLookup) {
             Collection cachedResult = null;
             synchronized (proxy()) {
                 Collection[] cc = getCache();
--- a/settings/src/org/netbeans/modules/settings/RecognizeInstanceObjects.java	Tue Jul 23 10:04:56 2013 +0200
+++ a/settings/src/org/netbeans/modules/settings/RecognizeInstanceObjects.java	Wed Jul 24 10:56:52 2013 +0200
@@ -113,7 +113,7 @@ 
         private final String path;
         
         public OverObjects(String path) {
-            super(delegates(path));
+            super(delegates(null, path));
             this.path = path;
             try {
                 ModuleSystem ms = Main.getModuleSystem(false);
@@ -135,7 +135,7 @@ 
         }
         
         @SuppressWarnings("deprecation")
-        private static Lookup[] delegates(String path) {
+        private static Lookup[] delegates(Lookup prevFolderLkp, String path) {
             ClassLoader loader = Lookup.getDefault().lookup(ClassLoader.class);
             LOG.log(Level.FINEST, "lkp loader: {0}", loader);
             if (loader == null) {
@@ -157,12 +157,20 @@ 
             } else {
                 s = path;
             }
-            return new Lookup[] {new org.openide.loaders.FolderLookup(DataFolder.findFolder(fo), s).getLookup(), base};
+            if (prevFolderLkp == null) {
+                prevFolderLkp = new org.openide.loaders.FolderLookup(DataFolder.findFolder(fo), s).getLookup();
+            }
+            return new Lookup[] {prevFolderLkp, base};
+        }
+        
+        Lookup extractFolderLkp() {
+            Lookup[] arr = getLookups();
+            return arr.length == 2 ? arr[0] : null;
         }
     
         @Override
         public void propertyChange(PropertyChangeEvent ev) {
-            setLookups(delegates(path));
+            setLookups(delegates(extractFolderLkp(), path));
         }
 
         @Override
@@ -191,7 +199,7 @@ 
         }
         private void ch(FileEvent e) {
             if ((e.getFile().getPath() + "/").startsWith(path)) { // NOI18N
-                setLookups(delegates(path));
+                setLookups(delegates(extractFolderLkp(), path));
             }
         }