On adding a cloth component on an empty prefab, Mesh collider keeps getting added repeatedly. Refer the attached video.

Steps to reproduce:
1) Create a new project
2) Create an empty gameObject prefab> Add cloth component to it
3) Select the prefab and in the override window in the inspector, click apply all.
4) Select the empty prefab again and go to the override window.

Actual result: Mesh collider component appears again in the override window.

Expected result: The override window should be empty.

Reproducible on: 2019.1.0a9, 2018.3.0b11, 2018.1.0b1, 2018.1.0a6.

Note: Improved prefabs has been introduced in 2018.3.0a6

Environment: Windows 10 and Mac 10.13