Depending on the Layout of the Editor, even simple projects (created from scratch and have a single PNG added as sprite) seem to leak render textures.

To reproduce:
1. Unzip attached Leaks.zip
2. Open RenderTextureLeak project there.
3. Open test scene
4. Start duplicating the sprite found in the scene
5. Note down that VRAM constantly increases
6. Do the same with the NoLeak project (found in the same zip)
7. VRAM usage does not switch.

Expected result: VRAM usage does not change depending on the layout of the editor
Actual result: Depending on the layout resources may be leaked.