How to reproduce:
1. Open the attached "CameraPositionIssue" project
2. Open Scenes/SampleScene
3. Open Main Camera's Inspector window and lock it
4. Enter Play Mode
5. Move the Capsule Game Object in Scene View
6. Observe the Console window

Expected result: the camera gets stuck in (0,0,0) position, the console prints camera's POST transform.position as (0,0,0)
Actual result: the camera moves and tracks the capsule, but the console prints the camera's POST transform.position as (0,0,0)

Reproducible with: 2.2.9, 2.3.4, 2.6.0, 2.6.1 (2018.4.26f1, 2019.4.8f1, 2020.1.3f1, 2020.2.0a20)

Note:
- In the script, I'm setting the camera's position to (0,0,0) in the Update() method, expecting to see it stay at that position in the editor, but it does not, the camera moves and follows the capsule. After setting the camera's position, I try to retrieve it by using Camera.position and it returns (0,0,0), although it is not.