How to reproduce:
1. Open the attached project
2. Select the "kiki_v39_base 1" model and make sure its Inspector is set to the "animation" tab
3. While holding the ctrl button select the other model next to it
4. Observe the console
5. Deselect them and observe the console again

Expected result: no errors
Actual result: Errors are thrown when selecting multiple models with the animation tab selected and another error is thrown when deselecting them

Reproduced in: 2020.2.0a5, 2020.1.0b3, 2019.3.7f1, 2019.3.1f1
Not reproducible: 2019.3.0f1, 2019.2.20f1, 2018.4.17f1