Change trail rederer to it's default/original vaule.

How to set _trail to its original value _defaultTrail. I tried this (below) code, but unfortunately _defaultTrail is also changing its value. Is _trail = _defaultTrail; is a good way to do this? Is there any way you/I/we can do this?

 using System;
 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 
 public class MoveCrossHair : MonoBehaviour
 {
     public Vector2 mouseCursorPosition;
     private TrailRenderer _trail;
     private TrailRenderer _defaultTrail;
     private Animator _animator;
     
     // Constants that may change later
     private string IsShooting = "IsShooting"; 
 
 
     void Awake()
     {
         _trail = GetComponent<TrailRenderer>();
         _defaultTrail = GetComponent<TrailRenderer>();
         _animator = GetComponent<Animator>();
     }
 
 
     void Update()
     {
         Cursor.visible = false;
         mouseCursorPosition = Camera.main.ScreenToWorldPoint(Input.mousePosition);
         transform.position = mouseCursorPosition;
         if (Input.GetMouseButton(0))
         {
             _trail.startColor = Color.magenta;
             _trail.endWidth = 1;
             _trail.endColor = Color.green;
             _animator.SetBool(IsShooting, true);
         }
         else
         {
             // HAVE A LOOK HERE
             _trail = _defaultTrail;
             print(_defaultTrail);
 
 
             _animator.SetBool(IsShooting, false);
         }
     }
 }