Steps to reproduce #1:
1. Download attached project and open "test" scene
2. Select "Humaniod_NewRoot" GameObject
3. Play animation in Animation window
4. Notice that cube still linked to animation thought animation window show that path is incorrect.

Step to reproduce #2:
1. In "test " scene copy "Human" GameObject's Animator controller
2. Remove Animator controller from "Human"
3. Create new GameObject
4. Make "Human" child of new GameObject
5. Paste Animator controller on New GameObject
6. Play animation in Animation window
7. Notice that cube still linked to animation thought animation window show that path is incorrect.

Expected results: Cube should not be affected by animation as path is incorrect
Actual results: Cube is affected by animation curve

Reproduced with: 2018.1.0b6, 2017.3.1p1, 2017.2.1p3, 2017.1.3p1, 5.6.5p1, 5.6.0a1