Steps to reproduce:
1. Create a new project
2. In Scene view, change Draw Mode to Material Validation/Validate Albedo
3. Create a Cube
4. Drag the cube away from the origin position
5. Notice that a part of it stays in origin

Note: in 2018.2.0b1, 2018.2.0b2 and 2018.3: if you add an icon label to the cube and make a prefab of it, clicking on the prefab makes the icon of the cube's ghost appear in the normal (Shaded mode) scene view (ghost.mp4)

Reproducible with 2018.1.0b6, 2018.1.0f2, 2018.2.0b2, 2018.3.0a1
Not reproducible with 2017.4.2f1, 2018.1.0b5