To reproduce:
1. Open attached project
2. Open "scene" scene
3. Open Animation window
4. Select "Point light" game object in the Hierarchy
5. Enable Light component
6. Play the animation

Note: looks like it appeared after issue 753595 was fixed

Actual behavior: animation is enabling and disabling Light component, but the light visible all the time in Scene window (see gif)
Expected behavior: light should not be visible when Light component is disabled by animation (see gif)

Reproducible with: 5.3.1p1
Not reproducible with: 5.1.4p1, 5.2.4p1, 5.3.0f4, 5.4.0b1