Fix memory leak caused by retained `internal` from first render
Fix memory leak caused by retained `internal` from first render

evanweible-wf/react-dart,cleandart/react-dart,cleandart/react-dart,evanweible-wf/react-dart,cleandart/react-dart,cleandart/react-dart,evanweible-wf/react-dart,evanweible-wf/react-dart