breaking line when readioGroup pr1operty showTitle is false

Version v9.1p_2014-06-04/LGPL Development Only (2014-06-04)
Browser: Chrome, 37.0.2062.124 m

Setting properties vertical and showTitle to false from a formItem with type radioGroup, radio button labels will break.

You can see it using the SmartClient example at
http://www.smartclient.com/docs/9.1/a/system/reference/SmartClient_Explorer.html#colorItem
replacing the example code for

isc.DynamicForm.create({
width: 400,
fields: [
{ title: "Radio Group", type: "radioGroup", valueMap: ["Option 1", "Option 2"], vertical: false, showTitle: false }
],
values: { slider: 4 }
});

Doing this, radio button labels spaces are broken in new lines.