Radiogroup selectedIndex wrong after move descendant radio indirectly

Steps to Reproduce

https://zkfiddle.org/sample/7q7rav/1-radiogroup-move-descendant-test

Current Result

in testA: wrong selected index
in testB: wrong selected index, and wrong radio status in rg_t2(multiple radio in rg_t2 isSelected)

Expected Result

same behavior as directly move the radio

Debug Information

Since we don't move the radio but move the parent div instead, the radio doesn't have opportunity to know the radio group is changed.

Workaround

move radio directly