Tree: reserve node expanding state while filtering
Tree: reserve node expanding state while filtering

ElemeFE/element,Kingwl/element,baiyaaaaa/element,baiyaaaaa/element,Leopoldthecoder/element-1,ElemeFE/element,huguangju/element,Leopoldthecoder/element-1,Raganof/element,Kingwl/element,Raganof/element,huguangju/element