add
Use this method on your component if you plan on it being removed from the component tree and re-added later, to guard against the rescaling system not updating the component's size (and optionally its children) as it was not referenced anywhere when the size was changed.
Why is this behavior not default? Because it is quite an unlikely scenario that a component will be removed and re-added, and having this run unnecessarily introduces a performance overhead.
Since
1.9.6