Light intensity is leaking memory in 7.1.6

I was testing the latest Enviro beta with 7.1.6 and it appeared the Unity Editor has become unusable. Everything was fine in 7.1.5. @Vondox found out that this is because of the light intensity. I volunteered to do the bug reporting. Reproducable:

* open Unity HDRP standard scene
* add this script to the Directional Light component

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using UnityEngine;
4.  
5. public class DriveDirectionalLight : MonoBehaviour
6. {
7.     public Light directionalLight;
8.     [Range(0f,10000f)]
9.     public float lightIntensity = 500f;
10.  
11.     void Update()
12.     {
13.         directionalLight.intensity = Mathf.Lerp(directionalLight.intensity,lightIntensity,Time.deltaTime * 1f);
14.     }
15. }
16.  

* hit play and watch memory grow rapidly (within seconds) in task manager

Disable the script and everything is fine.

 

I uploaded a reproducable project. Case id is 1205076.