Bad Values when multiple="true" is set on DataSource Field "[Ljava.lang.String;@"

I'm using:
SmartClient Version: v8.3p_2014-01-22/PowerEdition Development Only (built 2014-01-22),
Chrome Browser the newest version, or Firefox newest version.

When i set multiple="true" in my datasource field i get this kind of values " [Ljava.lang.String;@" for the value of SelectItem or values in the ListGrid field. I set multiple=true i order to get multiple selection in DynamicForm SelectItem.

When i use SmartClient 8.3/PowerEdition Development Only (built 2012-11-20)
i don't have this problem but i can't filter the multiple=true fields.
i install the new version after reading this post:
http://forums.smartclient.com/showthread.php?p=115253#post115253