Calling select with index of a separator causes the choicebox selection to change

Run the attached test against b32 of soma.

Now start clicking on select separator button. During first click the selection in the choicebox doesn't change. But on repeated clicks , the selection starts changing. This is not correct. When we are calling select with separator index, selection of choicebox shouldn't change.

I am testing it on Windows XP SP3 with 6u17 JRE.