Severe bug - ItemEditors placed on the wrong position on Spark Datagrid (Flex 4.10)

[João Saleiro]

Hello,

With Flex 4.10, if you scroll an editable Spark Datagrid and click a 
cell, the itemEditor will be placed on the wrong position.
A severe bug, IMHO.
Here's what's happening: http://www.boonzi.com/public/flex/datagrid/bug.png
I logged the bug here: https://issues.apache.org/jira/browse/FLEX-33665

Unfortunately I just found out this one a couple of hours before a 
planned release. Any tips that can help finding a fix for it?

Thanks,

JS