DataBinder activates autoGrowNestedPaths by default; fixed enum binding with WebRequestDataBinder

org.springframework.context/src/main/java/org/springframework/validation/BeanPropertyBindingResult.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2008 the original author or authors.
+ * Copyright 2002-2009 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -73,6 +73,7 @@ public class BeanPropertyBindingResult extends AbstractPropertyBindingResult imp
 		if (this.beanWrapper == null) {
 			this.beanWrapper = createBeanWrapper();
 			this.beanWrapper.setExtractOldValueForEditor(true);
+			this.beanWrapper.setAutoGrowNestedPaths(true);
 		}
 		return this.beanWrapper;
 	}