s:NumericStepper stepSize/snapInterval not working correctly

Steps to reproduce:
1. Run attached.
2. Click the up arrow in the stepper twice.

<?xml version="1.0"?>
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark" >

<s:NumericStepper id="minuteIndicator" minimum="0" maximum="59" snapInterval="30" stepSize="30" allowValueWrap="true"/>
</s:Application>

Note even if you remove the allowValueWrap it still goes from 30->59 which isn't correct.

Actual Results:

first time goes from 0->30
second time goes from 30->59

Expected Results:

first time goes from 0->30
second time goes from 30->0

Workaround (if any):

add a change handler to fix the value