Ajax listener doesn't work when using h:selectOneRadio with group attribute

When using `h:selectOneRadio` with `group` attribute and <f:ajax listener="...."/>, the listener method isn't called. Ex:
```
<h:selectOneRadio id="dpToday" group="dpFilter"  value="#{bean.today}">
    <f:selectItem itemValue="0" />
    <f:ajax event="change" listener="#{bean.method}"/>
</h:selectOneRadio>
```
The method `bean.method` is never called.

