コンポーネントをエディタ側で取得してしまう

GetRigidbody.cs

using UnityEngine;

[RequireComponent(typeof(Rigidbody))]
[RequireComponent(typeof(SphereCollider))]
public class GetRigidbody : MonoBehaviour {

	[SerializeField]
	protected Rigidbody rigidbody = null;
	[SerializeField]
	protected Transform transform = null;
	[SerializeField]
	protected Collider collider = null;
	[SerializeField]
	protected Renderer renderer = null;

	// Use this for initialization
	void Reset () {
		rigidbody = GetComponent<Rigidbody>();
		transform = GetComponent<Transform>();
		collider =  GetComponent<Collider>();
		renderer = GetComponent<Renderer>();
	}
}