Fixes issue where creating a new ForestItem wouldn't have it show in the ForestItemData dropdown on brushes until you restart.

Engine/source/gui/editor/inspector/datablockField.h

@@ -39,7 +39,7 @@ class GuiInspectorDatablockField : public GuiInspectorTypeMenuBase
 
       AbstractClassRep *mDesiredClass;
 
-      virtual SimSet* _getDatablockSet() const { return Sim::getDataBlockGroup(); }
+      virtual SimSet* _getDatablockSet() const { return Sim::getDataBlockSet(); }
       virtual void _populateMenu( GuiPopUpMenuCtrl* menu );
       
    public:
@@ -131,4 +131,4 @@ class GuiInspectorTypeSFXAmbienceName : public GuiInspectorDatablockField
 };
 
 
-#endif
+#endif