There's discarded data in the scene

[smallmain]

Cocos Creator version

3.8.2

System information

MacOS

Issue description

    "_diffuseMapHDR": {
      "__uuid__": "15fb9deb-951c-488c-846f-27917b13d761@b47c0",
      "__expectedType__": "cc.TextureCube"
    },

If you change the Env Lighting Type, the diffuse map is generated. If you change it back, the resource reference is still there.

Relevant error log output

No response

Steps to reproduce

.

Minimal reproduction project

No response