How to reproduce:
1. Open the "1246165" project and select "Main Camera" in the "New Scene" Scene
2. Make sure the Camera component is visible in the Inspector windows
3. Hover the cursor over the Inspector windows/Camera components

Expected result: a memory leak does not occur
Actual result: memory slowly increases as the cursor is moved over the Inspector windows

Reproducible with: 2020.1.0a22, 2020.1.0b9, 2020.2.0a1, 2020.2.0a11
Not reproducible with: 2018.4.23f1, 2019.3.15f1, 2020.1.0a21, 2020.1.0b10, 2020.1.0b10, 2020.2.0a12, 2020.2.0a13

Notes:
1. The Inspector needs to be docked in the Editor for the memory leak to occur.
2. The leak is more noticable when multiple Inspectors are docked in the Editor and the inspected object has an unfolded Camera component.
3. Reproducible in these versions:
3.1. 2020.1.0a22-2020.1.0b9
3.2. 2020.2.0a1-2020.2.0a11