TextInput problem in a scaled group

While using version 4.12 mobile we encountered two issues related to TextInput component when it is included in a scaled Group -

1. The text is not scaled and appears cut in side the TextInput.

<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark" applicationDPI="160">

<s:Group width="100%" height="50%" scaleX="0.5" scaleY="0.5">
<s:TextInput layoutDirection="rtl" />

<s:TextInput layoutDirection="ltr" top="100" />
</s:Group>

</s:Application>

Here is a video that shows the issue:
http://screencast.com/t/gyAnB6iDl0Gg

it happens also when scaling the entire application without using applicationDPI.
The use case is mainly for low-resolution Android devices where we need to scale only an area that includes a form (otherwise the keyboard covers it) and not the rest of the application.