negative scroll values in mx components

[Justin Mclean]

Hi,

There's a few JIRA bugs in the mx datagrids, advanced datagrids and lists 
related to negative scroll values.

What do people think of this patch to stop the issue from occurring at all?

diff --git a/frameworks/projects/mx/src/mx/core/ScrollControlBase.as 
b/frameworks/projects/mx/src/mx/core/ScrollControlBase.as
index 5ab99da..f35a7ba 100644
--- a/frameworks/projects/mx/src/mx/core/ScrollControlBase.as
+++ b/frameworks/projects/mx/src/mx/core/ScrollControlBase.as
@@ -493,6 +493,9 @@ public class ScrollControlBase extends UIComponent
      */
     public function set horizontalScrollPosition(value:Number):void
     {
+               if (value < 0)
+                       value = 0;
+                       
         _horizontalScrollPosition = value;
 
         if (horizontalScrollBar)
@@ -828,7 +831,10 @@ public class ScrollControlBase extends UIComponent
      */
     public function set verticalScrollPosition(value:Number):void
     {
+        if (value < 0)
+                       value = 0;
+               
        _verticalScrollPosition = value;
 
         if (verticalScrollBar)
             verticalScrollBar.scrollPosition = value;

Thanks,
Justin