How to reproduce:
1. Import assets, attached to the latest users email
2. Load scene "ikTestScene"
3. Select ikTestChar gameobject in the Hierarchy window
4. Open Animation window
5. In the Animation window set "testAnimation" animation
6. Record animation

Expected result: Character stays idle before starting animating it.
Actual result: Character changes its muscle pose when record button is pressed.

Reproduced with: 2018.2.0b3, 2018.1.0f2, 2017.4.2f2, 2017.2.2p4, 2017.1.3p4.

Note: Reloading scene reverts game objects pose.