How to reproduce:
1. Open attached project ("SpriteShapeInvisible.zip")
2. Open Scene "SampleScene"
3. In Hierarchy window select "New SpriteShapeController"
4. In Scene window, hold middle-click to move the camera out of "New SpriteShapeController" SpriteShape boundary box
5. Observe "New SpriteShapeController" GameObject's filled texture

Expected result: the Sprite Shape only disappears when you cannot see the texture anymore
Actual result: the Sprite Shape disappears when the camera view goes out of the Sprite Shape boundary box which is smaller than the texture

Reproducible with: 2018.2.0a7, 2018.2.0a2, 2018.1.0b13, 2018.1.0b9
Could not test with: 2018.2.0a1, 2018.1.0b8 and older, because Sprite Shape was not yet implemented