only establish parent if necessary

git-svn-id: https://svn.apache.org/repos/asf/click/trunk/click@1096504 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/framework/src/org/apache/click/control/Table.java b/framework/src/org/apache/click/control/Table.java
index 861887f..9b59ef3 100644
--- a/framework/src/org/apache/click/control/Table.java
+++ b/framework/src/org/apache/click/control/Table.java
@@ -1024,7 +1024,9 @@
         super.setName(name);
         ActionLink localControlLink = getControlLink();
         localControlLink.setName(getName() + "-controlLink");
-        localControlLink.setParent(this);
+        if ((localControlLink.getParent()) == null) {
+            localControlLink.setParent(this);
+        }
     }
 
     /**