Setting enabled=false DropDownList on its change event doesn't remove pop up

<s:DropDownList id="list" horizontalCenter="0" verticalCenter="0"
change="list.enabled = false">
<s:dataProvider>
<s:ArrayList>
<fx:Object label="One"/>
<fx:Object label="Two"/>
<fx:Object label="Three"/>
</s:ArrayList>
</s:dataProvider>
</s:DropDownList>

Try to select an item in the DropDownList.

Actual Results:
Pop up hangs. Selecting a different item finally closes it and disables the DropDownList. It is impossible to select the original selected item.

Expected Results:
Pop up should close, and the DropDownList should be disabled

Workaround (if any):
I was able to use callLater() to disable it later.

Reproduced with 4.0, 4.1, and 4.5 i6.