Timeline Preview mode causes animated objects to change pose when not in the view of the Scene camera

How to reproduce
1. Open the user's attached 'TimelineTest.zip' project
2. Direct the Scene view camera away from the character
3. Open the Timeline window (Window > Sequencing > Timeline)
4. Select the 'PlayableDirector' object in the Hierarchy
5. In the Timeline window disable and then enable the 'Preview' mode
6. Direct the Scene view camera towards the character

Expected result: Character remains in the default T pose
Actual result: Character changes pose

Reproducible with: Timeline 1.2.16 (2019.4.8f1), Timeline 1.3.5, Timeline 1.4.2 (2020.1.4f1, 2020.2.0a21)
Not reproducible with: 2018.4.26f1