Using multiple AjaxFormChoiceComponentUpdatingBehavior in a Panel

[Adam Gray]

I'm using the latest 1.4 release and it seems like there is an issue where
two AjaxFormChoiceComponentUpdatingBehavior will not work correctly.  The
first one will function properly but the second one does nothing.  We've
looked for a resolution to this, but have thusfar come up empty.  Is there
a known workaround (other than not using a Radio/CheckGroup) for this type
of behavior in 1.4?