Editor: Removal sprite from SpriteRender doesn't work

## Description
Editor: Removal sprite from SpriteRender doesn't work

## Steps to Reproduce

1. Create Actor
2. Add SpriteRender component
3. Set Sprite
4. Set Sprite to None

### Expected behavior:

4. Sprite removed

### Actual behavior:

4. Nothing happened

### Reproducibility:

100%

## Versions

2025.4
