Table Factory consumes EL expression during creation

I would like to update table data on the command event of a drop-down (that is outside the table) with
$attribute

{msgData}

. I tried but the tableRowGroup doesn't seem to get recreated after drop-down selection.

From Ken: This is a limitation of the current table factory. The problem is that the "factory" consumes the #{} / ${}
expressions during **creation**, so redisplays do not re-invoke the factory code which derives the table row
(dataprovider) information.
#### Environment
Operating System: All
Platform: Windows
#### Affected Versions
[1.2]