Reset functionality doesn't work for Camera component.

Steps to repro:
1. Open a new Project.
2. Select the Main Camera.
3. Change the Culling mask property value.
4. Click on Cogwheel > Reset.

Properties also do not reset:
1. Allow Dynamic Resolution.
2. Target Texture.

Actual Result:
Culling mask value does not reset for Camera component.

Expected result:
Culling mask value should reset for Camera component.

Reproducible on:
2019.1.0a5, 2018.3.0b7, 2018.3.0a1, 2018.2.8f1, 2018.2.0a1, 2017.4.12f1.

Environment:
Windows and Mac.