User isn't notified when a reference from scene cannot be applied to prefab from the override window or right-clicking to the component. Refer the video attached

Steps to reproduce:
1) Create new project
2) Create empty GameObject A
3) Drag A to project window, creating a prefab.
4) Right click on A in hierarchy > Video > Video player
5) Apply this Video player GameObject to A.
6) Select Video player > In Inspector > Render mode > Camera far plane
7) Drag the Camera from scene to Camera field in Video player
8) Apply the changes from the override window

Actual result: The changes don't get applied and the user is not notified
Expected result: The user gets notified with a dialogue box about the changes not getting applied.

Note: The user is notified with a dialogue box about, "Cannot apply reference to object in scene" when trying to apply by right-clicking the field. But the user is not notified when trying to apply by right-clicking the component or from the override window.

Occurring on: 2019.1.0a12, 2018.3.0f2, 2018.3.0b1, 2018.3.0a6

Environment: Windows and Mac.