[Improved Prefab] Override indicator (blue line) appears misaligned on Camera field for Video.

Steps to reproduce:

1) Create a new project
2) Add any Video file or use an attached Video file
3) Drag and drop Video file into the scene
4) Create prefab of Video GameObject
5) Video > Inspector > Video Player > Camera

Actual result: Observe that override indicator (blue line) appears misaligned on Camera field
Expected result: Override indicator (blue line) appears aligned in a single line on the left.

Occurring with:
2019.3.0a3, 2019.3.0a2

Working Fine on:
2019.2.0b2

Environment:
Windows and Mac