When I rerender a component with "defaultChecked" or "defaultValue" react fails to update the "value" and "checked" attribute accordingly.

Before you say "use a controlled input" I would argue that this is a bug as it basically disallows uncontrolled forms with "reset" buttons. (It will always reset to whatever the initial default value was).

var group = queryRoot.querySelectorAll(
      'input[name=' + JSON.stringify('' + name) + '][type="radio"]');
    for (var i = 0; i < group.length; i++) {
      var otherNode = group[i];
      if (otherNode === rootNode ||
          otherNode.form !== rootNode.form) {
        continue;
      }
      
      
      
      
      var otherInstance = ReactDOMComponentTree.getInstanceFromNode(otherNode);
      invariant(
        otherInstance,
        'ReactDOMInput: Mixing React and non-React radio inputs with the ' +
        'same `name` is not supported.'
      );
      
      
      
      ReactUpdates.asap(forceUpdateIfMounted, otherInstance);
    }
  }
  return returnValue;
}
module.exports = ReactDOMInput;