Scene camera acts as in-game camera and marks objects as visible. This cause unexpected behavior while testing game with Scene window open.

Reproduction steps:
1. Open project attached.
2. Go to "Scenes" and open scene "TestScene"
3. Enter Play Mode.
4. Press button "Change Camera"
5. Check Console.

Expected result: Capsule and Capsule2 visibility is changing.
Actual result: Capsule and Capsule2 visibility is changing.

6. Open Scene window.
7. With scene camera look at Capsule and Capsule2.
8. Repeat steps 3 - 4.
9. Check Console.

Expected result: Capsule and Capsule2 visibility is changing.
Actual result: Capsule and Capsule2 is always visible.

Reproduced on 5.3.0f4, 5.4.0f3, 5.4.1f1, 5.5.0b11.