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 tag = element.type;
  validateDangerousTag(tag);
  this._currentElement = element;
  this._tag = tag.toLowerCase();
  this._namespaceURI = null;
  this._renderedChildren = null;
  this._previousStyle = null;
  this._previousStyleCopy = null;
  this._hostNode = null;
  this._hostParent = null;
  this._rootNodeID = null;
  this._domID = null;
  this._hostContainerInfo = null;
  this._wrapperState = null;
  this._topLevelWrapper = null;
  this._flags = 0;
  if (__DEV__) {
    this._ancestorInfo = null;
    setContentChildForInstrumentation.call(this, null);
  }
}
ReactDOMComponent.displayName = 'ReactDOMComponent';